Beau Riffenburgh is originally from California and moved to England in the 1980s. He is the author of numerous books about exploration, particularly the Arctic and Antarctic. Liz Cruwys, originally from Bristol, writes under the pseudonym Susanna Gregory and is the author of two popular series of mystery novels. Beau and Liz have also written 12 novels together under the name Simon Beaufort, including the Geoffrey Mappestone series. The couple now live in south west Wales.