Nine-year-old Billy is digging for buried treasure when he finds a wormhole in the garden! And to make matters worse, all sorts of people from the past begin to clamber through it. Now Billy – aided by his pet dog, Shakespeare – is in a race against time to close the wormhole and round up all the people who have slipped through it, before history is changed for ever! No pressure then…

"This is a hilarious, laugh out loud story, you don’t know what madcap plot twist is coming along next." - Primary Times

"I learned quite a lot about historical characters from the book… I’ve now decided to ask for a metal detector for Christmas as I hope to find buried armour and other historic items!" - Hugo (Age 7), National Geographic Kids