An adventurer in the lands of Eldritch, Colin Farwalker died of thirst in the Endless Desert of Eldritch. Afterwards, his spirit wandered the sands, still searching for something to drink. Valanice gave him a pot of fresh water to quench his thirst and put his spirit to rest. In thanks, he brought her to his bones and offered her a choice of items to take: rope, Bug Reducing Powder, or his hunting horn. She took what she thought would be useful, and Colin's spirit was finally free.
In King's Quest VII: The Princeless Bride, Colin Farwalker appears in Chapter 1. The player can choose either the rope or the bug reducing powder. If the player chooses the latter, they also obtain the hunting horn.