After the excitement of his adventures aboard the Highland Falcon Thief, Harrison Beck can't wait for the opportunity to go on another amazing train journey. So when his Uncle Nat invites him aboard the California Comet, the iconic three-day train journey from Chicago to San Francisco, he leaps at the chance to travel. But when the daughter of billionaire entrepreneur August Reza goes missing en route, Hal finds himself with another mystery to solve. Can he uncover the kidnapper before the journey's end?

M. G. Leonard is the bestselling writer of children’s books such as Beetle Boy, The Twitchers and The Ice Children. Her work had been translated into over forty languages and Beetle Boy is currently in development as a live-action series for TV.

Sam Sedgman is the author of The Clockwork Conspiracy, the first in his exciting Isaac Turner Investigates series. Alongside his writing, Sam has worked as an award-winning digital content producer for the National Theatre, as a playwright and freelance journalist, and once ran a company designing murder mystery treasure hunts for adventurous Londoners.

Number of pages: 256
Reading age guide: 8 to 12 years
Publication date: 3 September 2020
Publisher: Pan Macmillan
ISBN: 9781529013085
Format: Paperback