Robert Crookall (1890–1981) was a respected psychical researcher known for his systematic studies of life after death. In works such as The Supreme Adventure, Events on the Threshold of the After Life, and What Happens When You Die, Crookall carefully documented reported after-death experiences communicated to the living. His research revealed striking consistencies across accounts from different cultures and times, all pointing to the conclusion that death is merely the shedding of the physical body. Crookall’s work remains influential in afterlife studies for its thoughtful, evidence-based approach.