The Mirror of Infinite Endings Is Out Today: Jacks, Evangeline & What the OUABH Companion Changes

Spoiler boundary: This release-day guide discusses the published Once Upon a Broken Heart trilogy and the companion novella's official premise. It does not reveal the new book's ending.

Quick answer: The Mirror of Infinite Endings by Stephanie Garber releases September 22, 2026. The illustrated novella is a fourth visit to the Once Upon a Broken Heart world, centered on Jacks and Evangeline after the trilogy. Read it after A Curse for True Love; expect a secret capable of rewriting their history, not a replacement for the original three-book arc.

The Mirror of Infinite Endings is out today

Waterstones lists the UK hardback for September 22, 2026, while Stephanie Garber's official announcement describes the book as an illustrated Jacks-and-Evangeline novella and the fourth installment in the Once Upon a Broken Heart world. That makes today's useful question less “is this real?” and more “where does it fit, and how much should I know first?”

If release-day romantasy is your current lane, our Damned If I Do release guide covers a separate adult paranormal-romance launch. This article stays with the Magnificent North and Garber's companion story.

What is The Mirror of Infinite Endings about?

The official setup begins after Jacks and Evangeline have reached their happily-ever-after in the Hollow. Their peace is threatened by a secret with the power to rewrite reality, their history and the ending readers already know.

That wording confirms the emotional engine without confirming the outcome. The central tension is not whether these characters have met; it is whether a hidden truth can destabilize the ending they fought to reach.

Is it Once Upon a Broken Heart Book 4?

Yes—with an important format note. Garber calls it the fourth installment, but also an illustrated novella. It continues the world and relationship after the trilogy rather than functioning like another full-length numbered novel with a brand-new starting point.

For a new reader, the clean order is:

1. Once Upon a Broken Heart
2. The Ballad of Never After
3. A Curse for True Love
4. The Mirror of Infinite Endings

Starting with the novella would reveal the trilogy's relationship destination before you have experienced the bargains, curses and memory stakes that give it meaning.

What is confirmed about the edition?

• Format: illustrated novella.
• Focus: Jacks and Evangeline after the original trilogy.
• Illustration: Garber's announcement credits Lotusbubble for full-page artwork.
• Length: Waterstones lists 256 pages for its hardback edition.
• Release date: September 22, 2026 for the listed edition.

Edition details can vary by territory, so check the retailer or publisher listing attached to the ISBN you plan to buy.

What does the novella change?

It changes the status of the trilogy ending from “last on-page moment” to “starting condition for one more story.” That does not automatically erase the original resolution. It gives Garber room to test what happily-ever-after means when the couple learns that part of their shared history may be unstable.

The most useful reading lens is consequence, not retcon. A premise about rewriting reality creates risk; it does not prove in advance that every earlier event will be undone.

Confirmed versus theory

Confirmed: Jacks and Evangeline are together at the start; a secret threatens their reality and history; the story is illustrated; it follows the trilogy.

Theory: which memory, bargain or character is tied to the secret; whether any prior ending is literally erased; and which familiar characters make meaningful cameos. Promotional language can invite those questions, but it cannot answer them.

Reader discussions about special editions and cameos show active interest, yet community guesses are used here only as demand evidence—not as canon.

Who should read it?

Read it if you finished the trilogy and want a compact return to Jacks and Evangeline, especially if illustrated fantasy editions are part of the appeal. Wait if you are still on Book 1 or Book 2 and care about protecting the trilogy's romantic outcome.

For a very different dark-academia release, our The Commons guide explains its dystopian college premise. Our Bodies of Magic release guide covers magical medicine, examinations and murder mystery.

Where to verify current details

Use Stephanie Garber's official announcement for the creator-confirmed format and focus, and the Waterstones edition page for the listed publication date, ISBN, binding and page count.

Bookish Closet bridge

No Once Upon a Broken Heart-specific Bookish Closet product was verified. The verified Bookish Closet Best Seller collection carries general fantasy-reader and romance-reader apparel; it is not evidence of an official collaboration with the book.

FAQ

When does The Mirror of Infinite Endings release?

The listed hardback edition releases September 22, 2026.

Is it a full novel?

Garber describes it as an illustrated novella and the fourth installment in the Once Upon a Broken Heart world.

Do I need to read A Curse for True Love first?

Yes. The novella begins after the trilogy and assumes you know Jacks and Evangeline's relationship outcome.

Is The Mirror of Infinite Endings about Jacks and Evangeline?

Yes. The official announcement centers them and places the story after their happily-ever-after.

Does it undo the trilogy ending?

The premise threatens to rewrite their history, but whether and how the ending changes is part of the new story and should not be treated as confirmed before reading.