They might also enjoy Garth Nix's [[The Fall (The Seventh Tower) by Garth Nix|Seventh Tower]] sequence, which has similarly extreme environments. Mark Robson's [[Dragon Orb (Firestorm) by Mark Robson|Firestorm]] series will appeal to fans of fantasy quests. Older children might like [[The Declaration by Gemma Malley]], a much more realistic fantasy, but one which also questions some ways in which science might be used in the future.