 Suspicious of the alien's intentions, Lisa sneaks into the kitchen and finds a book titled "How To Cook Humans".She takes the book and shows it to the aliens, who explain to her that part of the title was obscured by space dust, which they then blow away to reveal the title "How To Cook For Humans".Lisa, skeptical at this, blows off more space dust, revealing the title to be "How To Cook Forty Humans".