The Mirror of Infinite Endings
After the happy ending, Evangeline is dropped into a life where she has never met Jacks.

Stephanie Garber’s Once Upon a Broken Heart companion.
The Mirror of Infinite Endings is Stephanie Garber’s companion to the Once Upon a Broken Heart trilogy, published by Flatiron in 2026. Reviews describe it as a 44,000-word illustrated novella. It drops Evangeline into a life where she has never met Jacks and asks whether she will still choose him. Flatiron numbers it as a fourth book. Readers file it as 3.5, a coda written because they asked for one. The feature stays on that premise.
A happy ending with no instructions
The life the novella opens on
The opening reviewers describe is domestic on purpose. An innkeeper stands in a tavern with six dozen pies cooling and a manual that says you can never have too many. She is a day from a grand reopening. Her partner is immortal, fond of saying dragons are not pets, and pretending not to like the dragons. It looks like a last page. The novella’s point is that it is a first page. The happily ever after has arrived, and it came without instructions.
The mirror’s trick, in the same accounts, is a life where Evangeline has never met Jacks. The question is whether she chooses him anyway. A companion can retell. Reviews say a third of this one is retold, and that the epilogue belongs to somebody else. Those are judgments about the reading. The verified premise is the untested love and the life that does not include the meeting.
The Hollow is named by reviewers as a pleasure of the book. I will not invent what the Hollow contains. The name is enough to say the novella is not only a kitchen.
The names are the contract. A feature can repeat them and arrange them. It cannot add a scene the publisher did not already put in the room, and it should not pretend the last chapter has been checked.
What a coda is allowed to do
Once Upon a Broken Heart is the trilogy this book leans on. A reader who has not met Evangeline and Jacks can still see the question: if the meeting never happened, does the choice remain. A reader who has the trilogy will feel the missing meeting as a loss. The dedication, reviewers say, admits the book was written because readers asked. That is a fair origin for a coda. It is not a new trilogy.
Illustrated and short, at 44,000 words, the book is not trying to be the next long novel. The pies, the reopening, and the dragons are the scale. A grand reopening of an inn is a party. The mirror is the threat to the party. The partner who will not admit he likes the dragons is the joke that keeps the immortal from becoming a statue.
The stakes, in one review, are soft. That is a reader’s report, not a plot point I will extend. The feature stops at the choice.
That limit is useful. The book is still the book. The public premise is the reason to open it, not a substitute for the pages.
Who it is for
The book is for a reader who wanted more of Evangeline and Jacks after the trilogy and can stand a story that repeats some of the road. It is a poor fit for a reader who wants a first novel with no prior couple.
Flatiron is the publisher. The series slot is the companion. The verified offer is the untested meeting and the inn that looks finished. I have not read the novella.
The pies are the door.
A reader who only has the jacket still has a real situation: people with jobs, a date or a missing meeting, and a pressure that does not resolve in the preview. That is a book, not a note.
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About the book.
The Mirror of Infinite Endings is Stephanie Garber’s 2026 Flatiron companion to Once Upon a Broken Heart, a 44,000-word illustrated novella. Evangeline is placed in a life where she has never met Jacks and has to choose anyway.
A short note
The pies are the part I trust. A finished-looking inn, a partner who pretends not to like the dragons, and a mirror that removes the meeting. Garber fits the coda because the trilogy already made the choice the point. I have not read the novella. The missing meeting is enough to open. The rest can wait until the pages are actually in hand.
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