The Quickling Tree is a hidden location that can be found randomly by 's'earching any forest square in the western half of the wilderness (at least as far west as the Barbarian's Clearing). To enter the Tree, the PC must have the Thin and nimble corruption, must weigh no more than 10 kilos (or be a hurthling) and must not be carrying over 160 stones of items (including worn items). Such light weight can only be achieved with the very light corruption (still a problem for trolls who weighed 240 kg on average). The PC also cannot exit the level if (s)he is carrying more than 160 stones.