About the Author
Alan MacDonald is the author of many books for children, including the bestselling Dirty Bertie series, which he worked on with awardwinning illustrator David Roberts. His series Troll Trouble (Bloomsbury) has been optioned for film by Twentieth Century Fox, and Alan has also published picture book The Prince of Pants (Scholastic) with the illustrator Sarah McIntyre. When not busy with books, Alan writes for children's TV series such as Horrid Henry, The Tweenies, Boo! and Fimbles. Sarah Horne has illustrated many hilarious children's books, including Llama United by Scott Allen (Pan Macmillan) the Fizzlebert Stump series by A.F. Harrold (Bloomsbury), the Guinea Pigs Online series by Amanda Swift and Jennifer Grey (Quercus) and Michael Rosen's Laugh Out Loud Joke Book (Scholastic). Sarah grew up in Derbyshire and now lives in London.