The search for a spirit world after WW1 that led people to believe that photographs of fairies were real. Plus Jamaica's worst train crash, France's last execution by guillotine, the man who saved the Proms and life in a giant greenhouse in Arizona - Biosphere 2.

Photo: Frances Griffiths and the "Cottingley Fairies" in a photograph made in 1917 by her cousin Elsie Wright with paper cut-outs and hatpins. Credit: Alamy