Publisher: Orbit (Trade Paperback – 26 November 2024)

Series: The Echo Archives – Book One

Length: 389 pages

My Rating: 4.5 out of 5 stars

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Take a bold leap through various time loops with one of the more exciting and clever fantasy novels of 2024, The Last Hour Between Worlds by Melissa Caruso.

Melissa Caruso is a very talented author who has been producing brilliant female-led fantasy fiction since her debut in 2017.  Starting with her outstanding Swords and Fire trilogy (The Tethered Mage, The Defiant Heir and The Unbound Empire) and continuing with her sequel Rooks and Ruins trilogy, Caruso made a big impact the first several years of career, and her writing has only gotten stronger since.  As such, I made it a big priority to get my hands on her 2024 novel, The Last Hour Between Worlds, which I had the pleasure of reading at the start of this year.  The first book in the author’s new The Echo Archives series, The Last Hour Between Worlds sets up a cool new fantasy series with a murder mystery twist behind it and some great story ideas.

Plot Synopsis:

A whip-smart adventure fantasy packed with rival guilds, reality-bending magic, and sapphic pining, The Last Hour Between Worlds is the brilliant launch of a new series from David Gemmell Award-nominated author, Melissa Caruso.

Kembral Thorne is spending a few hours away from her newborn, and she’s determined to enjoy herself at this party no matter what. But when the guests start dropping dead, Kem has no choice but to get to work. She is a Hound, 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 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 home. 

The Last Hour Between Worlds was a particularly elaborate and compelling read that had me hooked from the start and kept dragging me along, much like its characters were dragged down through death and echoes.  Sharp, intense and featuring a ton of unique world-building, The Last Hour Between Worlds was a bold read that cleverly sets up a great new fantasy series.

I had a brilliant time with The Last Hour Between Worlds, as Caruso features a complex narrative with compelling stakes that proved hard to put down.  Starting off with a good introduction to the protagonist, Kembral Thorne, a nearly retired Hound and expert at travelling through the various arcane Echoes that exists under her city, and several other key characters as they are entertained at a party held by a prominent city politician.  It doesn’t take long for the action to kick off as several dark denizens from the Echoes arrive at the party, determined to kill certain guests and drag the entire gathering down into the reality below.  Dragged along with it, Kembral finds herself stuck in a dark time loop which only she remembers thanks to an interaction with a mysterious grandfather clock.  Forced to watch her friends and colleagues brutally murdered and dropped into a deeper Echo with each variation of the loop, Kembral seeks a way to stop the recurring murders and ensure that everyone comes out alive.

The plot goes in some interesting directions as The Last Hour Between Worlds continues, and it soon becomes apparent that Kembral and the rest of the humans are caught up in a deadly power struggle between the Empyrean, the masters of the Echoes, who are using this event as a key piece in their games.  Forced to team up with the only other person who can remember events, her nemesis and potential love interest, Rika Nonesuch, the two work through various iterations of the time loop, figuring out more clues about the event and trying knock all the competing Empyrean out of the time loop before the final chime of the clock.  This results in an entertaining, exciting and complex storyline, which Caruso sets up extremely well.  The blend of human and magical intrigues that the protagonists are forced to navigate allows for a very compelling story, and I loved all the cool twists that emerge, as well as the deeper personal struggles between Kembral and Rika.  It all leads up to the big conclusion at the final Echo, as the two desperately fight to ensure everyone survives.  I felt that Caruso set up an excellent ending for The Last Hour Between Worlds, especially as this story is wrapped up in a satisfying manner, while also hinting at some more dark adventures to come.

I really enjoyed how cleverly The Last Hour Between Worlds came together.  The slick blend of unique fantasy elements, a cool time-loop mechanism, and the layers of intrigue surrounding events was particularly impressive, and I really got hooked on the story because of how well these elements were utilised.  The time-loop part of the book was especially great, and the way in which Caruso kept reframing the story in each successive Echo ensured that you were constantly on your feet and you never quite knew what was going to happen next.  The underlying setting and magic of The Last Hour Between Worlds was also quite clever, as Caruso envisioned an elaborate array of alternating dimensions and dark creatures that mirror the humans above in twisted ways that the protagonists need to overcome and bargain with.  While I think that some of the elements of the setting could have perhaps been explored in a little more detail before the major events of the plot kicked off, for the most part readers can come in and completely follow what is happening in the plot without any issues.  The resulting action, well-hidden twists, and cool character interactions really enhance The Last Hour Between Worlds’ already compelling narrative, and you won’t be able to turn away from Caruso’s new fantasy adventure.

The final thing I want to talk about were the great characters featured within The Last Hour Between Worlds, with the focus primarily being around the heated pairing of Kembral Thorne and Rika Nonesuch.  A fun case of attracted opposites with lots of history, the law-abiding Kembral and the roguish thief Rika are the perfect foils for each other, and I love their heated interactions.  Despite their initial mistrust, the two soon begin to work together to survive and find their old feelings rekindling.  Caruso nicely slow burns their inevitable romantic attachment, , and they must work through a lot of mistrust, hidden secrets, and their own perceived slights to get there.  The rest of the cast is also interesting and entertaining, and you get quite attached to them as the time loops continue, even though some wind up temporarily dead.  Several are these characters are slated to have bigger roles in the upcoming sequel to The Last Hour Between Worlds, and I cannot wait to see what happens there.  Throw in some excellent dark mystical figures in the Empyrean, who act as either antagonists or shadowy figures on the sidelines, and this was a stacked set of characters that Caruso clearly has some intriguing plans for.

With a slick plot, a great mixture of fantasy adventure of murder mystery hijinks, and some entertaining characters, The Last Hour Between Worlds was an outstanding novel from Melissa Caruso, who continues to showcase why she is one of fantasy fictions most inventive rising stars.  Serving as a great starting point to a new series, The Last Hour Between Worlds comes highly recommended, and I loved its powerful and complex plot.  I honestly cannot wait to see where Caruso takes The Echo Archives series next, although the upcoming sequel, The Last Soul Among Wolves, sounds particularly awesome.

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