Picnic at Hanging Rock (novel)

Picnic at Hanging Rock is a 1967 Australian historical novel by Joan Lindsay. The plot focuses on a group of female students at an Australian women's college in 1900 who inexplicably vanish at the site of an enormous rock formation while on a Valentine's Day picnic, and also explores the outlying effects the girls' disappearance has on the community. The novel has been often discussed and debated due to its inexorably ambiguous ending.