This strip originally had a “SEE ROOMIES! #2” footnote at the bottom, because this strip (and sort of this storyline) references a print-only story that probably three people bought.  That’s one of the major reasons I wanted to put this rerun site together, just so all the material was available and in order so you don’t have “OH HEY SORRY” moments like those.

(click through the “Mary’s house” location tag and you should find that comic book page being referenced)