The fourth volume in the #1 Sunday Times bestselling Murdle puzzle series!'UTTERLY ADDICTIVE!' JANICE HALLETT, bestselling author of THE TWYFORD CODE and THE APPEAL'AN ABSOLUTE PHENOMENON' RICHARD OSMAN, bestselling author of THE THURSDAY MURDER CLUB SERIESFreshman Logico arrives at the prestigious Deduction College with a keen interest in logic and a mission to graduate at the top of his class . . .when a series of mysterious killings occur in this fourth instalment of Murdle: The School of Mys...