Secret Agent Jack Stalwart. Book 5, The secret of the sacred temple : Cambodia

When an archaeologist who guards the priceless 1,000-year-old treasures of the temple of Angor Wat goes missing, her daughter Kate calls on Jack to help bring her home. No sweat for a top secret agent. Except this time it's personal. The archaeologist also has information leading to the whereabouts of Jack's missing brother. Now Jack must stop a power-hungry madman before the treasure, and the archaeologist, disappear forever. Nine-year-old secret agent Jack must rescue an archeologist working at Angkor Wat and prevent her kidnapper from using the power of the antiquities she was guarding for evil