Pip Jones lives in East London with her partner, her two daughters and a real invisible cat (it doesn't catch mice, but it doesn't need a litter tray either, so there are pros and cons).

She writes a lot. She even owns a writing cloak! And she spends days on end working out how to get good rhymes, such as 'snuffle' and 'kerfuffle', into stories. Pip won the inaugural Greenhouse Funny Prize in 2012 with Squishy McFluff, The Invisible Cat, her first book.

Adam Stower is an award-winning author and illustrator of children's books. Adam was born in England, grew up in Switzerland and has loved drawing ever since he was old enough to hold a crayon. He went to art school in Norwich, and Brighton too, where he still lives beside the sea with his wife and a cat called Murray.