Prue is Ishmael’s little sister and Mom and Dad’s daughter. Ishmael describes her as a genius, or almost a genius, and many consider her to be “adorable.” For the most part, Ishmael has made peace with the fact that he’s never going to be able to outshine his sister. But she does occasionally cause him problems, as when her extensive project of turning pegs (clothespins) into influential historical figures humiliates Ishmael at a debate. (The peg person version of Ringo Starr accidentally gets stuck in Ishmael’s pants and falls out his pant leg while he’s speaking).