Encounter: flouncy insectoid-person of some sort that either has no explanation for itself or refuses to give it, preferring to flit hither and yon in the cold night air; it requests to join your party and assist as it is able. Upon consulting the proper lore, the party discovers that actually it is one of the early larval forms of a Remorhaz. If allowed to gain a sufficient number of XP, it will begin to manifest extra limbs, ravenous hunger, and/or jagged chitonous spines that radiate heat.