Brothers Greg and Lewis are enjoying a heatwave in the summer holidays -- until Loki, the god of mischief, buries their town, St Andrews, in a huge blizzard! Loki is determined to conquer the universe and will stop at NOTHING to get his way.
Greg, Lewis and their friend Susie must make a perilous journey to Asgard, the City of the Gods, to foil Loki's evil plan.
Luckily, Thor, the god of thunder, has turned up to help them. Unfortunately, he's locked in the boys' garage . . .
Robert J. Harris was born in Dundee and now lives in St Andrews with his wife, sons, and his dog. He is the author of many children's books, including The Day the World Went Loki (the prequel to Thor...), Will Shakespeare and the Pirate's Fire, and Leonardo and the Death Machine; and he is the creator of popular fantasy board game Talisman.