The last two stenopelhabilis were kept in the Tokyo Sanctuary until they were killed during the attack by the Cabal. Their corpses were then moved to the Old City Sanctuary in cryogenic stasis. When Kate Freelander opened the case to steal the tusks, the corpses defrosted and the offspring that had escaped notice was able to escape. As Kate was the first thing it saw, it imprinted on her, stealing her clothing and putting it in its nest. It later escaped from the Sanctuary, but Kate and Henry were able to find it and bring it back.