Unicorn School is a series of chapter books written by Linda Chapman and published by Puffin between 2007 and 2009.
[1] The series is about a Unicorn boarding school in a fictional land called Arcadia.
When they leave school at 15 years of age, the best ones become the Guardians of Arcadia.
The series revolves around a Unicorn named Willow.
All of the books currently written in the series take place in her first year.