Alice-Miranda at Camp by Jacqueline Harvey

Alice-Miranda and her school friends from Winchester Downsfordvale Academy for Proper Young Ladies are on a school camp - but it's not all camp fires and treasure hunts. A new student seems determined to cause trouble, though Alice-Miranda can't work out why. And when some startling objects are discovered in the old manor house next to the camp site - the house where Alice-Miranda's father grew up - Alice-Miranda knows she has to investigate.
Binding: Paperback / softback