Frank E Peretti

The Door in the Dragon's Throat (Cooper Kids Adventure #1)

Escape from the Island of Aquarius (Cooper Kids Adventure #2)

The Tombs of Anak (Cooper Kids Adventure #3)

Trapped at the Bottom of the Sea (Cooper Kids Adventure #4)

The Secret of the Desert Stone (Cooper Kids Adventure #5)

The Deadly Curse of Toco-Rey (Cooper Kids Adventure #6)

The Legend of Annie Murphy (Cooper Kids Adventure #7)

Mayday at Two Thousand Five Hundred (Cooper Kids Adventure #8)

The Cooper Kids Adventure Series (Cooper Kids Adventure 2-In-1 Book)

The Cooper Kids Adventure Series (Cooper Kids Books 1-4)