Series
Summary
Spies report that Amy and Dan seem to be tracking the life of one of the most powerful fighters the world has ever known. If this fearsome warrior was a Cahill, his secrets are sure to be well-guarded . . . and the price to uncover them just might be lethal. Full description
Series: The 39 clues. Main series
The maze of bones (Volume 0001)
One false note (Volume 0002)
The sword thief (Volume 0003)
Beyond the grave (Volume 0004)
The black circle (Volume 0005)
In too deep (Volume 0006)
The viper's nest (Volume 0007)
The emperor's code (Volume 0008)
Storm warning (Volume 0009)
Into the gauntlet (Volume 0010)
Vespers rising (Volume 0011)