Novel Boot Camp – Lecture #12: Writing a Series


Writing a series or trilogy of novels is all the rage right now. The dream of publishing a novel, for many writers, has turned into the dream of a successful series of novels with a mega-blockbuster movie deal. Writing a book series is very appealing to aspiring writers. But what makes a series successful?

It’s a lot more than simply writing a bunch of books about the same characters. Writing a great book series is like writing a great novel except three times bigger (for a trilogy) or four, five, ten, twenty times bigger (for a series), because not only does each novel have an arc, but so does the series as a whole.

If you’re writing or considering writing a novel trilogy or series, here are some things to keep in mind:

Plan Ahead

If I could only give you one single piece of advice, this would be it: plan ahead! The more plotting, outlining, and time-lining you do, the better your series will turn out. This prep work will save you from major headaches down the line. It will also enable you to provide details about the rest of the series to a prospective publisher, who’s going to want to know what the series has in store.

Create a Time Line

There is nothing worse than realizing halfway through book two that your super-amazing, carefully crafted plot doesn’t make sense because Pirate Pierre is supposed to take over the world two years before he was born. Time line issues can create major nightmares for a series writer, but can be easily avoided by maintaining a time line of your story. Creating one early will help you plan an error-free series.

Viewing your world’s history and your characters’ histories in a time line may also spark new ideas and interesting connections.

Create a Series Bible

Every time you introduce a concept, rule, or description, put it in a series bible (a big ol’ document full of information about your series). Then refer to this bible often as you write the books to ensure that you are following your own rules and maintaining consistency.

Some things you may want to include in your series bible:

  • Character profiles, including their arc across each book and the entire series.
  • Family trees or other charts of how characters are connected.
  • Maps of locations or detailed written descriptions of the layout of the land.
  • Any rules or laws established in the series.
  • An explanation of how abilities or powers work and a list of their limitations.

Introducing Concepts that Become Relevant Later

Possibly the most challenging aspect of writing a series is introducing concepts that become relevant in later books. While not an absolute requirement, establishing concepts in early books can help create a consistant and “real” feel to the series.

Whenever you’re introducing a concept/character/ability/location/etc that will become relevant later, the key is to also make it relevant now, in book one. That doesn’t mean it needs to be central to the plot or even relevant to a major conflict, but it needs to feel like it’s being included for a purpose and/or its inclusion needs to be invisible to the reader.

If a minor character’s stinginess becomes the major conflict of book three, perhaps their stinginess causes a minor conflict in book one and a slightly larger one in book two. This way you establish their stinginess in a way that is relevant to the first two books rather than throwing it in as an extraneous detail.

“Hiding” the introductory of information is also an option. For example, you can use flippant comments from characters, jokes, warnings, etc. to introduce an idea in an unobtrusive way.


Keep in mind as you write or revise the first book in your series that anything you set up in the first book (no matter how insignificant) must be carried through the rest of the series. This is where planning the full series in advance can save you a lot of headache. If a law is mentioned in passing in book one, you are locked into following it, even if it prevents you from exploring a really cool plot line for book two.

Even if all you want to do is just make a teeny-tiny alteration to the character’s magical powers, readers will call your bluff. Your series will no longer feel realistic. Inconsistency shatters the illusion of the story.

Keep Loose Ends Strategic

It can be tempting to leave a variety of loose ends in the first novel in the series so that when writing subsequent books you can pick up whichever loose end seems most interesting or exciting. But a ton of loose ends can make a novel feel unfocused and cluttered. Plus leaving unanswered questions isn’t satisfying for readers.

If you leave a loose end, it needs to get tied up at some point in the series. So don’t leave a bunch of stuff dangling if you don’t intend to address it later.

Each Book Stands Alone

It is never okay to end a novel without a resolution. The first (or second or tenth) novel in a series is no exception. Every novel must stand alone on its own two feet with its own central conflict that gets resolved over the course of the novel.

Yes, there may be a bigger picture conflict that has not been resolved or you might imply a new conflict to tempt the reader to read the second book, but overall, the book should have some serious stand-alone appeal.

The most important thing to ask is: Does this book have value outside the context of a series? Would it sell if there were no sequels?

If you answer no, you’ve got some major reworking to do.

The Character Arc

Writing a character arc throughout a series of novels can be a challenge for some writers. While a character arc needs to be present in every novel, it does not necessarily need to be a different arc for every story. The character can have one arc that is broken into several stages.

For example, say you have a character who grows from being a spoiled rich girl to a worldly and generous heroine across the course of a series. Her character arc in book one may simply be accepting the fact that members of her society are impoverished. Perhaps she struggles to accept this because she was told it isn’t true. Maybe she blames the impoverished people for their plight for most of the novel, but her eyes are opened by the end.

In the second book in the series, perhaps she learns to accept life among the impoverished people, while in book three she learns to be willing to fight for them. The character arc can be broken into smaller chunks (or arcs) just like the plot of the series can be broken into smaller plot chunks (arcs) for each book.

The character arc can also be caused by the previous novel in the series. If a character makes a decision that results in the death of a friend, she may spend all of book two learning to accept herself and let go of the guilt.

Consider the “Connecting” Factor

What is the concept or element that will connect the books in the series? Is it the character’s ability? The world? A villain?

Whatever element of the series is the connecting factor, that element needs to be extremely strong. This is your series’ “hook.” Without one, there isn’t much reason for a series.

The thing is, publishers don’t want writers to create series just for the hell of it. There needs to be something that makes the series cohesive. It should not feel tangentially related, nor should it feel like an average character is followed through a series of unrelated obstacles across the series. There needs to be something exciting and consistent for the reader to latch onto.

Identifying and strengthening the appeal of this connecting factor can help you sell the idea to agents, publishers, or readers.

Avoid Being Stingy with Ideas

One common obstacle with writing a series is the temptation to “save” ideas for later books. You think up a cool concept but then hesitate to add it to book one. Wouldn’t it spice up book three a little more? you think.

The problem with saving ideas for later is that there won’t necessarily be a later. Even if the first book gets published, there is no guarantee any sequels will ever hit the shelves. If you’re stingy with your ideas, you’ll end up with a half-baked novel sitting on your hard drive rather than a fantastic standalone novel on book shelves.

Don’t Write a Series Because it’s Popular

A lot of big books recently have been a part of a series, and I think this has led a lot of writers to get dollar signs in their eyes when they think about landing a huge-o gigantic multi-book deal. But don’t just jump on the series bandwagon because you want to be more marketable.

In truth, many publishers are actively seeking out standalone novels because of the insurgence of writers selling series. There is a great market for both standalone and series novels. So don’t try to iron your plot as flat as a pancake to spread it over a trilogy. If a series develops, that’s great. If it doesn’t, that’s equally as great.

Homework: To Series or Not to Series

If you’re writing a series, consider whether your story is truly big enough to fill multiple books. Will each of these books have a full plot arc that would be satisfying outside the context of a series? Have you done a significant amount of prep work on your series? If not, spend some time today organizing your time line, outline, and series bible.

If you’re not writing a series, consider if the story you’re telling has series potential or is getting too big for its one-book britches. A good sign is a word count creeping up over 100,000.

Connect with Other Novel Boot Camp Participants

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What is Novel Boot Camp?

Novel Boot Camp is a free online novel writing course focused on identifying and correcting problems in your novel. Learn more about Novel Boot Camp and find past (and future) posts here.

10 thoughts on “Novel Boot Camp – Lecture #12: Writing a Series

  1. Roman says:

    Thank you for the helpful post! The character arc you described is spot on with the arc of one of my MC’s. I don’t know if that’s good or bad, lol. My hope is to do a series (4 books). I think my overall plot is big enough to do so. I just finished the second chapter of one of my pov characters for my first, I have a long way to go. After reading your lecture, the problem that I might have is with my first book. I plotted the series from the ending. so, most of the good plot points are in the later books. Which made the first book hard to plot. I only worry that my first book might be irrelevant to the series. The conflict is good, but I fear that it doesn’t have the “connect factor” as you put it. Though one of my Pov’s does give a hint that there is more to the story.

  2. Ella says:

    What do you think of a pair or ‘bilogy’? One of my stories looks as if it will split naturally into two novels of roughly equal length and scope; if I try to force it into a trilogy or tetralogy, I don’t think any of the books will stand alone.

    • Julie Griffith says:

      I feel the same about mine. I could tell the story in two books, but there’s not enough for a trilogy. So it sounds like a two book series is okay? I like “bilogy”, that’s cute.

  3. Julie Griffith says:

    I was hoping you’d cover this topic! This makes it easier to understand, but the idea of a trilogy or series still overwhelms this new writer. I tend to want to leave a cliff hanger at the end of each book like they do in a season finale on TV (Will Rick and co. escape from that boxcar, or will they be served for dinner?-Walking Dead reference for those not in the know). I have no idea what’s the best way to make sure a reader can pick up book 2 and understand it even if they haven’t read book one. I see authors use their first pages to explain what happened in the previous book which is a bit boring for those of us who read the series in order. Who starts reading in the middle of a series anyway?? I actually want to write a stand alone book, but they seem to be rare in YA these days. I almost feel like it has to be a trilogy or series to make it. And like Ella asked: what about a 2 part series, Do they exist, and if not, I wonder why? Is three the magic number?

    • jennfs10 says:

      I think trilogies/series are the current trend in YA literature. Due to the predecessors of serial books like JK Rowling, publishers want to capitalize on a successful series for as long as they can. (Although JK Rowling had planned for the Harry Potter series to be seven books long to represent each year at Hogwarts.)

      Although serial stories seem to be the current trend in YA lit, it’s not the standard. Rainbow Rowell and John Green are authors who write stand alone novels, but they also write in YA realistic fiction too. I think YA fantasy/sci fi lends itself better to possible trilogies. Melina Marchetta wrote the Lumatere Chronicles, and if you read the first book, Finnikin of the Rock, it could very well stand alone. The second and third books are about minor characters who become the main characters. The main characters from the first book are still in the other books, but their roles are peripheral, yet important.

      A two book series is rare. Some authors have a book that stands alone and then come out with companion books for the first. The latter books are usually set in the same setting/world as the first, but the characters are new. A good example of this is Kristin Cashore’s Graceling series. Her books don’t follow the standard conventions of a series. Instead, each book is about a different part of her world and then it all comes together in the last.

      Also, Twilight was supposed to be a two book series. It was only supposed to be the first and last book, but the publishers wanted to extend the story more and have the main character Bella stay in high school longer or in that age range. An author can have their own plans for their story, but I think depending on how well it does and the publisher’s expectations, those plans can change.

  4. Darnika Zobenica says:

    What do you think about writing multiple novels in the same setting (epic fantasy), but with different characters/timelines/maybe places etc? I’m sort of guilty of epicly detailed setting (I’m not showing it all in the book, but it’s all in my head with over 600 years of history, mythology etc) and if the first book was successful I could use it for the second one. It might be more of non-chronological chronicles than a series.

    • Rebecca P. says:

      Darnika I’m sure you’re aware of Robin Hobb’s work in your genre. She has successfully set three (I think?) trilogies in different parts of the same world.

      • Darnika Zobenica says:

        Thanks for the comment! I’m aware it works, I’m just a tad bit afraid of how good of an idea it is for somebody who’s anonymous. I guess it depends on the success of the first book, if it’s published.

  5. Rebecca P. says:

    I’m writing a series over seven books, so this was a very helpful lecture – thanks Erin!. The main challenge I’m finding is growing the protagonist’s character arc over seven books. On one hand, I agree that you should never save ideas for later books; on the other, I feel like I should ration his character growth.

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