Gerson

Gerson is a vendor found in Waterfall. His shop is located in a small cave east of the houses of Napstablook, Mettaton and Undyne as well as north of the river where the River Person is located. An elderly looking olive green tortoise-monster, Gerson wears archeologist attire, with a pointed beard, a large magnifying glass, and a tan pith helmet. His teeth are crooked and yellow and his shell is a dark brown color with a pale cream rim. He also seems to be unable to open his right eye.