Welcome to the joyous world of Mina and best friends Reema and Mobeen! Mina, Reema and Mobeen can?t wait to go on their school trip, an overnight stay at Shiremoor Oaks Adventure Centre . . . until somebody spooks them with stories about Bertie Blackteeth: who haunts the woods, who sharpens her toenails with twigs, who is waiting to skewer her next unfortunate victim all over with cheese-and-onion crisps! With Bertie Blackteeth lurking and the school bully seeming to have become the teacher?s pet ? this trip will test their friendship, courage and love of potato chips to the limit.