Trapped at the Bottom of the Sea — Frank E. Peretti

Lila insisted on leaving her father's teaching expedition to go back to the States and stay with her aunt. If she had only known that the Air Force flight would be hijacked! Now she is a prisoner in a locked, top-secret weapons pod with no way of escape--trapped at the bottom of the sea . . . Meanwhile, her dad, Dr. Jake Cooper, her brother Jay, and daring adventurer-journalist Meaghan Flaherty are trying to pick up her trail. Pursued by angry terrorists and with a cannibal tribe ahead of them, they island-hop in a remote corner of the Pacific, hoping against hope to find the plane. But will they reach Lila before her air runs out and before the pod is found by another hostile group searching for it?

Another breathtaking adventure complete with exciting sea chases, perilous deeds, and narrow escapes. By the bestselling author of This Present Darkness and Piercing the Darkness.