Splash, Bubbles, and friends love to play hide and seek together in the dark, dark Deep! In this touch-and-feel book, readers can interact with this mysterious part of the ocean when they touch sticky slime, feel a gritty rock cave, and marvel at shimmery firefly squid. The rhyming text is gently spooky for the youngest readers to enjoy around Halloween, and offers an important reminder that being with friends in unfamiliar situations can help you feel brave!