The Unicorn Chronicles is a series of young adult fantasy novels by Bruce Coville set in a fantasy world, Luster, that lies parallel to our own. Within this realm exist all sorts of fantastical and mythological beasts, from the familiar unicorn to the strange, squirrel-like creature known as the Squijum. The series was originally published as four books between 1994 and 2010 but began republication in 2020 with changes. In order to make the books more uniform in size, the last two books will be split into five for a seven book series. The first novel in the series was chosen as a finalist for the Young Adults' Choices for 1996 list, a project funded by the International Literacy Association. The second novel was chosen for the 2001 list. Source: Wikipedia (en)