Finny is mentioned on the page of new Sunbeam Tot Best!! Fulltext of Tot's page can be found here, but the relevant section is as follows:
"Given the circumstances the duo found themselves with a greater need to spend time in the Hellmouth proper. They settled on the decision to become roommates in a small house on the east side of town. Tot also suggested the inclusion of Gulp, as a thanks for allowing Ruiz to play (and because it seemed Gulp needed newbie friends). After hearing about this plan various teammates suggested they take teammate Phineas Wormthrice along with them. Thus the four "newbies" moved into their house."
