Laugh your socks off with Wilf on a dino-tastic adventure! Perfect for fans of Tom Gates, David Baddiel, Danny Wallace and Phil Earle.

Meet Wilf. He worries about everything. He is a Mighty Worrier.

And now Wilf's evil next-door-neighbour Alan is determined to rule the world ... from the very beginning of time!

But on the way to prehistoric Earth in Alan's time machine, Wilf is desperate for a wee, so they stop off in the 16th Century. There they meet Henry VIII - a very shouty man, who hitches a ride.

Now Alan AND Henry want to be King of the World. Can Wilf stop them with the help of his new dinosaur friends?

Join Wilf as he travels back in time to walk with dinosaurs and save the world from Alan ... again!

Look out for more Wilf adventures: Wilf Saves the World, Wilf Battles a Pirate, Wilf is King of the Jungle, Wilf and the Alien Invasion.

This is book 5 in Wilf the Mighty Worrier .

There are 160 pages in this book. This book was published 2017 by Hachette Children's Group .

Georgia Pritchett is a comedy writer who has written for a number of TV comedies and comedians including The Thick Of It , Veep , Miranda , Have I Got News For You , Smack the Pony , Graham Norton, Jo Brand, Paul Merton, Lenny Henry, Ronnie Corbett, Wallace and Gromit and several other real, fictional and occasionally plasticine people. Wilf the Mighty Worrier is Georgia's first work for children. She lives in London with her partner and two children. Jamie Littler graduated from the Arts Institute at Bournemouth in 2008. He has won a High Commendation Award at the Macmillan Children's Book Awards and is the creator of 'Cogg and Sprokit', which is serialised in the PHOENIX. He has worked on high-profile projects including The Famous Five . Follow him on Twitter @jamieillustrate or visit his website at http://jamielittler. co. uk/