Zac and Essie have been helping their Granny Mo in her search for the perfect pet. She’s tried everything – cats, bunnies, even axolotls! – and she just can’t find the right one. But when the trio go mudlarking in the riverbank, they find a creature unlike anything else … Granny Mo might have set out to look for a pet, but now she’s got a monster on her hands and it’s about to get up to some mischief!

"Young readers will love this funny story. Adventures with Granny are often the very best kind" – Kate Heap, Scope for Imagination, blog "Not only is this read tremendous fun, but it is also a delightfully charming tale – one which portrays the close bond between three members of the same family, and which left me with a huge smile on my face and a warm glow when I finished it" – World's Smallest Library, blog "McCombie is on her best comedy form as she casts a magical spell of family fun, warmth and wit over this laughter-packed tale" – Lancashire Evening Post "There’s plenty of fun to be had as the third little monster runs riot in the flat and the children have the most exciting visit to Granny Mo’s that they have ever had … this story will delight younger readers" – The Letterpress Project