Hannah Plum loves fashion, fun, and junk food. Patti Woo is obsessed with detective novels, lives in leggings, and is definitely not Hannah's friend. But the two girls are stuck at the beachside Heartbreak Hotel together while Hannah's dad and Patti's mom are out birdwatching and - yuck! - falling in love.

When a hotel guest's beautiful pink wedding dress is stolen, Hannah is determined to get to the bottom of it. With a reluctant Patti in tow, the two girls are launched into an ever-deepening mystery. Why is a wedding planner sending secret signals to an unknown guest? Who's leaving creepy wet diving relics in the hotel rooms? And could some long-lost, famous pink pearls be at the heart of it all?

If Plum and Woo want to survive the summer, they'll need to solve this mystery in style. But first, they'll have to survive each other ...

In every Plum & Woo installment, Hannah and Patti will investigate a surprising and sinister fashion mystery while also navigating their newly blending family. Brimming with fun, danger and highly relatable tween angst, this series is perfect for 9+.