Wretched Waterpark
From New York Times bestselling author Kiersten White comes her middle grade series debut! Part Scooby Doo, part A Series of Unfortunate Events, and entirely genius! Meet the Sinister-Winterbottom twins, who solve mysteries at increasingly bizarre summer vacation destinations in the hopes of being reunited with their parents—or at the very least finally finding a good churro.
Twelve-year-old twins Theodora and Alexander and their older sister Wilhelmina Sinister-Winterbottom don’t know how they ended up with their Aunt Saffronia for an entire summer. She’s not exactly well equipped to handle children. The twins are determined to make it a good vacation, though, so when Aunt Saffronia suggests a waterpark, they hastily agree.
But Fathoms of Fun is not your typical waterpark. Instead of cabanas, guests rent mausoleums. The waterslides are gray tongues extending from horrible gargoyle faces. The few people they encounter are very, very odd. And the owner disappeared under bizarre circumstances, lost to the Cold, Unknowable Sea—the wave pool.
When Wil goes missing, rule following, cautious Alexander and competitive, brave Theo will have to work together to solve the mystery of Fathoms of Fun. But are they out of their depth?
Kiersten White
Kiersten White’s storytelling is a blend of fierce imagination, sharp wit, and deep emotional resonance. Known for her ability to spin complex tales of fantasy, horror, and the supernatural, White has captured the hearts of readers with her distinctly bold, often dark narratives. Her stories are where the boundary between the ordinary and the extraordinary blurs, where readers are invited to dive into worlds filled with magic, monsters, and unforgettable heroines.
Born in Salt Lake City, Utah, Kiersten grew up with a passion for both reading and writing, though she was the kind of person who loved to daydream about new worlds before ever setting them down on paper. From an early age, she found herself enchanted by stories that pushed the limits of what was possible—stories that felt real, even when they were anything but. That love of the fantastical is something that continues to infuse her books, drawing from her own love of adventurous narratives and her curiosity about what lies beneath the surface of reality.
Sinister Summer
Sinister Summer consists of five books. The current recommended reading order for the series is provided below.

