Somehow Mama never manages to be nearby when Elspeth finds this place. Mama would exploit it; Elspeth is happy enough to come in and get some of that gold fizzy stuff. (And bring more of it home for everyone else.) Mama has given Elspeth fairly minor exploitation-type errands, but Elspeth has pointed out that major ones might make whatever causes the door to prefer Elspeth in the first place stop favoring her so much. (Bar certainly doesn't know; it's all guesswork - but Elspeth can't rule it out, which gives Mama pause. She does show Mama everything that happens while she's there, anyway.)

So when she finds it in the cafeteria instead of finding the cafeteria, she and Jake go in, and Jake orders himself nine inches square of deep-dish lasagna and Elspeth has a bubbly and asks Bar to recommend her a book. They sit in a booth and watch the stars explode.