Free the captive archaeologian

Background

 * This is not really a quest, but is required to access the archaeologist's quests in the Tenebrous Tangle Timeline.
 * Do the following whenever you need if he is absent from the Hidden Shelter.

Steps

 * Kill all Scaleborns in the treehouse at (-70, -40) on Temple Grounds island. You must kill them all before they respawn (6 minutes).
 * When no Scaleborns are alive, will run out of the treehouse and down the river to the waterfall.
 * You can now find at his spot in the Hidden Shelter.

Rewards
Access to the following quests: