Meet the number one, best dressed, and (possibly) smallest detective in the world, Monsieur Mustard.

One evening, way past your bedtime, all was quiet in the city of Bath. Fabio Fangtooth was finishing his alphabet soup. When suddenly . . . Whoomp! . . . he disappeared.
Yes, my friends, this is the most SPINE-TINGLING, CLAW-BITING, POOT POOT IN YOUR PANTALOONS mystery that Monsieur Mustard has ever set his little eyes upon.

Can our hero crack the case with the villain hot on his tail?

Stunningly colour illustrated throughout, with graphic novel pages for the exciting detective scenes!

'Quirky and fresh! J'adore Monsieur Mustard' Sheena Dempsey

"A charming, tightly plotted and witty detective story for young readers" - The Bookseller

"A fabulous light-hearted detective story that channels the fussy brilliance of Agatha Christie’s Hercule Poirot, but in mouse form!" - BookTrust

"A brilliantly innovative mystery story" - The Bookseller