While snorkeling along the ocean reef, Blue Ocean Bob senses something below. With encouragement from Cathy crab, he trusts his intuition and assembles a team to explore a shipwreck on the ocean floor. But despite help from Al the dolphin and his assistant Molly Marine, he is unable to complete the descent. After consulting with the wise ocean creatures Doc the turtle, Earl the clam, and Eve the octopus, he and Molly devise a creative plan to release some new friends trapped at the bottom of the Sea of Kerchoo. The Adventures of Blue Ocean Bob #4: A Secret in the Deep is a colorful and inspiring early chapter book written in rhyme that provides young readers with an introduction to timeless principles of achievement.