The Heartwood i could cause an extinction-level event.

A shout, a boy, young, injured. Sialuk drew near, unsure if he would survive the next few hours. He was not with the waking world, but Sialuk could not leave him so. She went to work, cleaning his wounds with her tongue. Whatever had done this too him had wished him dead. Sialuk murmured prayers to the ancestors, leaving only briefly to gather herbs to pack his wounds and stave off infection.