Rosen is a British bestselling author, who writes fiction for children and adults.

Rosen Trevithick

She was born in Cornwall and grew up on Restronguet Creek. She studied Experimental Psychology at St Catherine's College, Oxford, before moving back to the West Country. She now lives in Falmouth with two imaginary cats, fantasising about getting a real one.

In 2011 Rosen was an aspiring author. Writing was a hobby. The following January sales of her books took off. Readers have now downloaded ove...