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The Salt Labyrinth: A Middle Grade Mystery Adventure
Paperback
Series: The Custodians, Book 4
Publisher: Bart Studio Press
Published: Sep 27 2026
Pages: 252
Weight: 0.65
Height: 0.57 Width: 5.50 Depth: 8.50
Language: English
Europe demanded a riddle. Asia demanded patience. The mountains demanded payment. The islands demand the truth - exactly told, or not at all.
A fragment arrives from a keeper the wheel has never met: The tide has the last two.
On the Mediterranean's oldest islands, a fourth order of Custodians guards seven stones hidden in temples older than the pyramids. Unlike every house before it, this one doesn't test with riddles, patience, or payment. It tests with testimony.
The stones show fragments of what truly happened, and they will not wake until someone tells the account exactly right - no embellishment, no convenient omissions, no smooth spots.
And for the first time in the series, the clock isn't magical.
Two stones sit in a chamber the sea now reaches twice a day - and the tide does not negotiate, haggle, or forgive.
Worse: for the first time in sixty years, Augustin Kessler has stopped waiting. No proxies. No patience. He is doing his own fieldwork - and he has reached the islands first.
Meanwhile, Casimir Vane, the former enemy living above the shop, must prove that an ally who was once a hunter can be trusted with the wheel's maps - and the wheel's children.
Eight islands. Seven stones. One promise broken three thousand years ago - and one family about to learn it was made to their name.
Inside this adventure, readers will find:
- Real history in every riddle - temples older than the pyramids, a town buried alive with no bodies, a fortress with three times the stone of the Great Pyramid, and a palace that was never robbed because nobody thought it worth robbing
- A clock made of weather - the sea doesn't take coins, and this time the countdown is real
- The series' biggest secret, half answered - what the eleventh house really is, and why it was made to the Bellamy name
- A team worth rooting for - a puzzle-solver, a bell-ringer, an archivist, a new keeper who corrects everyone, and a grandfather learning to be forgiven
A fast-paced middle-grade mystery adventure filled with ancient history, archaeological secrets, puzzles, family mysteries, friendship, and a race against the rising sea.
Start with The Whispering Stones - or dive in here. The stones will catch you up.
Tell it true, tell it whole - or the mountain says almost.
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