The day I found a wormhole at the bottom of the garden

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…