A fast-paced and thrilling illustrated adventure, the first collaboration between the creator of The Demon Headmaster and the creator of The Boxtrolls.
MACHINES, MYSTERIES AND MAYHEM - THIS MUST BE A CASE FOR OLLIE SPARK.
Ollie Spark loves mending machines and solving mysteries. But he gets more than he bargained for when fixing Aunt Caz's van throws him into a real-life spy adventure!
Ollie is whisked away to a mysterious city with strange plants, an unknown language and suspicious people round every corner. With the help of Gasket, his new dog best friend, he sets off on a mission to save the city - and Aunt Caz - from disaster.
Can Ollie fix things before it's too late?!
"Hugely enjoyable reading" - LoveReading
"Exciting adventure . . . and a great friendship at its core" - BookWagon
"A thrilling new series" - Waterstones' Best Books of January 2022
