The second book in Bonnie Dillabough’s Dimensional Alliance, where the multiverse and its stakes come into full view. A tribute and a review.
If the first book opened the door, Infinity on Fire is where Jenny realizes how much is on the other side of it, and how much now depends on her. The weight of the multiverse settles onto her shoulders in this second volume of The Dimensional Alliance, and Bonnie Dillabough begins building out the larger universe that the opening book only hinted at.
Picking up Jenny’s story after she inherits the house, the cat, and the key, the book widens the scope from personal discovery to genuine stakes. The impossible door has led her to adventures beyond her own universe, and now she must begin organizing the response to a threat that reaches across dimensions. This is the volume where a portal-fantasy premise grows into a multiverse-spanning series.
From discovery to responsibility
The shape of this second book reflects a sound instinct about series structure, whether Bonnie planned it consciously or felt her way there: the first book is wonder and the second is weight. Having shown Jenny the multiverse, Bonnie now makes her responsible for it, and that shift from exploring a world to defending it is exactly the escalation a second volume needs to turn a promising opening into a saga. The fate of everyone Jenny cares about is now genuinely in play.
In memory
A tribute to Bonnie Dillabough — the friend, mentor, and author behind The Dimensional Alliance, in her own story and mine.
The universe takes shape
This is also where Bonnie’s distinctive blend comes forward, the science fiction and fantasy braided together that would define the series, with its mix of the wondrous and the heartfelt. She described her own writing as pretending on paper, getting to tell crazy stories and make people smile, and the joy of that invention is visible as the multiverse expands here. For a writer who had published her very first novel only months before, the confidence with which she enlarges her world in book two is striking.
Keep reading
Writing a series: how each book raises the stakes — the discovery-to-responsibility escalation that turns an opening into a saga.
Dragons and robots, side by side
One of the things that made Bonnie’s universe memorable is a genre blend most writers would not dare: dragons and robots coexisting in the same multiverse, fantasy and science fiction not just adjacent but intertwined. It is the kind of combination that could read as a gimmick in less sincere hands, but Bonnie made it work through sheer conviction, treating her invented worlds with the seriousness of someone who had been dreaming them for decades. The multiverse that expands across Infinity on Fire is wide enough to hold magic and machinery at once, and that capaciousness is part of its charm. Bonnie was not interested in policing the borders between genres; she wanted room for wonder, wherever it came from.
Bonnie wrote eight of these books, with a ninth nearly finished and a full nine-book arc mapped out, before she passed. Infinity on Fire is the volume where you can feel her settling in for the long journey, the one she very nearly completed. For a reader meeting the series now, this second book is the one that confirms the promise of the first, the moment a charming premise reveals itself as the foundation of something Bonnie meant to build for years, and the moment a first-time novelist became, unmistakably, a writer with a long road ahead of her.
Frequently Asked Questions
What is Infinity on Fire about?
The second book in The Dimensional Alliance. Jenny, having inherited the house, cat, and key and discovered the multiverse beyond the impossible door, now carries the weight of that multiverse and the fate of those she loves, beginning to organize against a dimension-spanning threat.
Where does it fall in the series?
It is book two of The Dimensional Alliance, the volume that expands the world from Jenny’s personal discovery in book one into the larger, higher-stakes saga that follows.
Do I need to read book one first?
Yes, ideally. Infinity on Fire continues directly from The House on Infinity Loop, building on the characters and the multiverse established there. Starting with book one gives the series its proper foundation.
What makes the series distinctive?
Bonnie Dillabough’s blend of science fiction and fantasy, with dragons and robots coexisting, grounded in a sincere, hopeful sensibility about ordinary people rising to extraordinary roles. She called her work pretending on paper, written to make readers smile.
Who was the author?
Bonnie Dillabough, who published her first novel at sixty-three and wrote eight Dimensional Alliance books before her death in April 2025. A full tribute to her life and work is linked on this page.
