Book 1
Book 1
Iron Knights
Three best friends uncover a brooding secret in a deserted castle: 3 huge mechanical knights. They set about repairing t... More
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Book 3
Book 3
Black Knight
Dev and his friends are back with more mind-bending tech in this third instalment of the Inventory serie... More
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Book 4
Book 4
Inventory: Winter Storm
"Thrilling, gripping, action-packed." - The Guardian In the fourth book of this high-octane series, the... More
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