Margot, Wesley, and Josephine have the perfect weekend planned to celebrate the end of summer before starting high school — and nothing is going to get in the way of their big adventure in London.

But while staying with Margot’s mom and her new boyfriend, Teddy, in Notting Hill, something happens that they just can’t ignore...

Join the trio as they chase clues across wild West London, following the trail of a shockingly creative murderer — and some seriously cool street art. From skate parks and tower blocks to canal towpaths, their investigation leads them all the way to a float at the colorful Notting Hill Carnival — the biggest party of the year!

Can Margot, Wesley, and Josephine piece together the evidence in time to solve the mystery at the heart of London’s coolest streets?

Praise for Sharna Jackson:
“I utterly loved The Good Turn; it’s bone-deep brilliant — a joy to the very end. It’s so warm and so funny, and so ferociously on the side of justice and of hope. I adored it.” — Katherine Rundell