The co-authors of Trail Magic are mother & son. Hazel was an Antarctic expeditioner but is best known for her children's books and adult non-fiction. Trevelyan Quest Edwards is a THRU walker, one of only two Australians to finish walking the 2000 mile Appalachian Trail in 2012. 'Quest' is his real middle name. A Darwin based, Australian life-saver and ex-cartographer, his previous book Cycling Solo: Ireland to Istanbul is a favourite with backpackers, cyclists and travellers. Trevelyan originally inspired his mother's classic picture book There's a Hippopotamus on Our Roof Eating Cake (Penguin) when he was 4 years old. An orienteering family, adventurous books are becoming the Edwards' family trade.