Case file in preparation← Math Mission Files
The Compass of Lost Cities
Six lost-city maps. One vanished compass. Every route must be proved.
When six restored maps align, the legendary Meridian Compass vanishes into a sealed route. Correct the maps, connect the city chambers, and find the route that protects a hidden archive.
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Inside the book
A mystery built from mathematics.
- 24 connected map-mystery missions
- 96 math-and-logic puzzles
- Six distinct fictional city chambers
- A conservation-minded final route
Look inside the caseClues you can see.
Clues you can see.
Reasoning you can follow.
The visual world supports the puzzle—not the other way around. Each case combines story scenes, functional evidence, clear hint paths, and worked solutions.
Coordinates and map scaleGeometry and measurementTime, data, and transformationsRoute optimization and logic
Keep the connection going