Shaggy

Shaggy is an NPC located at the Spiders Den, inside the house on the hill.

He will give you the next quest part after completing the start quest of the Archaeologist. This quest says that you need to find 7 "rare relics" out of the 28 Relics found on the Archaeologist quest. They are marked with purple particles. To activate the quest you must place at least one Arachne Keeper Fragment and defeat the Arachne world boss first.