Book 2
Book 2
Black Knight
Dev and his friends are back with more mind-bending tech in this third instalment of the Inventory series. ... More
Book 3
Book 3
Inventory: Winter Storm
"Thrilling, gripping, action-packed." - The Guardian In the fourth book of this high-octane series, theInventory'... More
Book 4
Book 4
Iron Knights
Three best friends uncover a brooding secret in a deserted castle: 3 huge mechanical knights. They set about repairing t... More