The fifth thrilling mystery in the number-one bestselling, award-winning Murder Most Unladylike series. 'Robin Stevens is Agatha Christie for children' Katherine Rundell'This is that rare thing: a series that gets better with every book' TelegraphIt's Christmas, and Daisy Wells and Hazel Wong are spending their holiday in snowy Cambridge with Daisy's big brother, Bertie. But there's danger lurking in the dark stairwells of Maudlin College - and two days before Christmas, there is a terrible accident.At least, it appears to be an accident - until the Detective Society looks a little closer, and realise a murder has taken place.Faced with several irritating grown-ups and fierce competition from a rival agency, Daisy and Hazel must use all their cunning and courage to find the killer (in time for Christmas Day, of course).Discover the beloved murder mystery phenomenon that has sold over a million copies.'Thrilling' Guardian 'Perfect' The Times 'A superb puzzle . . . Splendidly seasonal' Metro