The Ginger Horse (Linford Mystery Library)

Redways Preparatory School, two miles east of the little village of Wainsford, is a reasonably successful school. Although the headmaster's treatment of both staff and boys is too formal and unbending to make it an entirely happy one... The Head, his assistant masters, and their womenfolk live in a world of petty jealousies and gossip. But this is nothing compared to the intrigue which develops when a murder is committed in their midst...