Join Gus on his summer adventure as he discovers the hidden wonders beneath the waves! With his dad's swimming goggles, Gus meets Prillis, a lively plankton, and learns about the fascinating world of these tiny underwater creatures. Together, they explore how plankton grow, their importance to the ocean's ecosystem, and even the challenges they face. Dive into this enchanting picture book, perfect for curious young minds, and uncover the secrets of the smallest yet mightiest inhabitants of the sea. A delightful tale of discovery, growth, and the wonders of nature.