In a flash-illuminated picture taken at a séance in Wortley Hall, Finsbury Park in 1937 Evans can be seen "levitating" in mid-air. He claimed that the spirits had lifted him. Evans was later discovered to be a fraud, as a cord leading from a device in his hand has indicated that it was himself who triggered the flash-photograph and that all he had done was jump from his chair into the air and pretend he had levitated. He performed in complete darkness so that sitters in the séance could not see what he was doing. Magicians have pointed out that Evans's blurred feet in the photographs are proof that he simply jumped high into the air.
- "5 Doctored Photos That Once Fooled Everyone But Now Fool Only Fools". All That's Interesting. 20 October 2017. Retrieved 18 August 2018.
- Joe Nickell. (2005). Camera Clues: A Handbook for Photographic Investigation. The University Press of Kentucky. pp. 177–178. ISBN 978-0813191249
- John F. Michell, Bob Rickard, Robert J. M. Rickard. (2000). Unexplained Phenomena: A Rough Guide Special. p. 82. Rough Guides Ltd. ISBN 978-1858285894
- Life Magazine. (1938). London Medium Snaps His Own Levitation. 4 July. p. 35
- Harry Price. (1939). Fifty Years of Psychical Research. p. 199