Fans of Wimpy Kid and Tom Gates will love the hilarious fifth instalment from Timmy Failure, aka the world's greatest detective.

The only thing you need to know about Timmy’s latest memoir is that it was never meant for publication. Timmy's detective log was stolen, and if this book gets out, Timmy will be grounded for life. Or maybe even longer. Because while Timmy was meant to be focusing on schoolwork, he was continuing his detective work in a garden shed. You don't need the details. Just know this: there's a Merry, a Larry, a missing tooth and a disappearing friend. But don't tell Timmy's mother!