Review: The Last Hour Between Worlds, by Melissa Caruso

Kembral Thorne is spending a few hours away from her newborn, and she's determined to enjoy the party no matter what. But when the guests start dropping dead, Kem has no choice but to get to work. She's a member of the Guild of Hounds, after all, and she can't help picking up the scent of trouble. She's not the only one. Her professional and personal nemesis, notorious burglar Rika Nonesuch, is on the prowl.
They quickly identify what's causing the mayhem: a mysterious grandfather clock that sends them down an Echo every time it chimes. In each strange new layer of reality, time resets and a sinister figure appears to perform a blood-soaked ritual. As Kem and Rika fall into increasingly macabre versions of their city, they'll need to rely on their wits - and each other - to unravel the secret of the clock and save their city.

"Your life was always worth something, you insufferable fool."

Melissa Caruso's The Last Hour Between Worlds is an excellent magical mystery with a Groundhog Day twist, immaculate world-building, and a compelling relationship developing in a matter of hours. This first volume in a trilogy that promises to be explosive sets the scene for a story with clear stakes and memorable characters.

The main character and sole PoV, Kembral, is a great protagonist. On leave after giving birth to her daughter, she's quick to action and set on doing the right thing, even if it might mean not seeing her infant child again. She's a competent protagonist without being overpowered, even if she does have a special skill that sets her aside from the rest of her colleagues, but it's a learned skill, and she's not the only one to have it. Her dynamics with rival Guild member Rika are a delight, their shared past the real meat of the story, and Rika's an equally compelling character with secrets of her own. Their verbal sparring is fun and the way they set to work together a marvel.

This isn't a romantasy, the central mystery means they're on a clock, and the book balances that out pretty well. The supporting cast does a lot of heavy lifting, a number of colorful and interesting characters, each with their own voice and their own complex relationships. I especially loved the fiery swordswoman and her sibling, and I can't wait to see them explored more.

The worldbuilding is precise while not being overwhelming. It doesn't hand-feed the reader, but rather it allows to glean everything from context in a clear and concise manner. The Echoes, parallel universes of sorts, were especially interesting with their slighter differences the deeper one goes, and the Empyreans - functionally demigods - were appropriately eerie. The inner workings were clear if one is familiar with Faerie and fairy deals, spinning a familiar environment for the reader while doing something new with it. The Prime world had a lot of interesting dynamics and politics, too, which I can't wait to read more about.

The Last Hour Between Worlds is a delightful introduction to a new world.

✨ 4.5 stars