As if bombing out at the interschool swimming champs wasn't bad enough, now Jack's become the target of the school bully. How he wishes he was an all-conquering, fearless Viking warrior, like the ones in his favourite books. But Jack discovers how dangerous wishing can be when he wakes to find himself in a strange and desperate world - Norway in the time of the Vikings, 900 years ago. And now he must prove himself - and in so doing, he finds an inner strength that will serve him well on his return to his own life.