Macmillan Children's Books has acquired two new novels by award-winning author Frank Cottrell Boyce.
The books will be published in hardback in 2014 and 2015, followed by paperback editions a year later.
Publisher Belinda Rasmussen bought world rights in the titles from Zoe Waldie at Rogers, Coleridge and White. Rasmussen said: "We're looking forward to bringing a smile to the faces of thousands of children when we publish these two cracking books by Frank Cottrell Boyce. We feel lucky and proud to be the home of this national treasure."