Justin Richards: 2 books

After the flood… Creatures stir in the watery depths, and monsters stalk the night. The City was once a thriving capital. Then the water rose and the ground fractured. At the ancient cathedral of Whispers, Jake and his friends Sarah and Geoff witness a murder. But as monstrous creatures...

Polly loves animals, and she loves working with her parents at the Three Rivers Animal Park. But she never expected to find a penguin in her bath – and certainly not a detective penguin. Before long, Polly and her new friend Pip are involved in a mystery that involves disappearing fish, a missing bicycle, light-fingered meerkats, and low-flying puffins…