This viking duo will give Horrid Henry a run for his money, from international bestselling author, Francesca Simon.

What if your parents WANTED you to behave badly?

Set in the snowy fjords of a Viking kingdom, the terrible twins, Hack and Whack, are proud to be the best worst vikings.

Nothing stops the marauding pair as they steal boats, loot a birthday party, track a troll and sail off to raid Bad Island with their friends Twisty Pants and Dirty Ulf.

Well, almost nothing ...

'A treat for kids. A wonderfully absurd, anarchic romp.'
Sarah McIntyre, author of Pugs of the Frozen North and Cakes in Space

'Plenty of anarchic japes ... Simon deploys her familiarly slick comedy to relate the mishaps of the Viking twins Hack and Whack.'
The Daily Telegraph

'As joyously anarchic as Horrid Henry himself, these two little boy and girl Vikings will have your children laughing out loud.'
Cressida Cowell, international bestselling author of How to Train Your Dragon series

'Funny and exciting ... the wild, laugh out loud humour level is well pitched for 5-8 year olds ... a great new series for early readers.'
Booktrust

'Two Terrible Vikings delights in overturning social mores. Simon has a well-tuned ear for child-friendly jokes ...'
Literary Review