Rosen was born in Cornwall. She studied psychology at Oxford before moving back to the West Country.
Readers have downloaded over a quarter of a million copies of Rosen's books. Several titles have broken into the Amazon charts, including a number 1 humorous fiction bestseller.
Books 1-3 in the Smelly Troll series.
Eating children is wrong. But what did you expect from a creature that slurps other people’s bogies?
When Rufus Sebbleford learns that trolls plan to attack Sludgeside School, he has to act fast. He and Polly hatch a plan with the help of their new friend Bruno, unaware that Bruno happens to be a troll.
A school trip to the Mr Splendiferous Science Park results in chaos, when the mad scientist is found to be keeping a dangerous troll locked up in the grounds.
And Rufus comes face to face with the dangerous sporting hero Brawnulator Powerknees, when a skiing holiday to the Craggle Alps collides with the Winter Trollympics.
A stinky, squelchy adventure; a slimy, sausage-slinging adventure; and a slippery, icy adventure – all packed into one gruesome volume.