Harley is back with another inventive adventure! Eager to best her class nemesis Fenelda in the contest for best invention, Harley dreams big with her time travel machine. But sadly it doesn’t seem to work. But what about the strange happenings around Inventia – and the huge dinosaur that has been spotted in Forgetown?

Author Vashti Hardy Published by Scholastic ISBN 9780702323430 EAN 9780702323430 Bic Code YFB|YFC| Cover Paperback