Natalie not only has to contend with the fact that her rather and mother separated and he remarried--now, he and his new wife have quintuplets! Natalie's whole identity seems to revolve around being their sister. Of course, that's the way she's introduced to the gorgeous new guy at school, fresh from Canada. At home, she feels more and more that she is expected to baby-sit the ""pests,"" as she calls them, when they are on nationwide TV. But Natalie copes with all this reasonably well; her biggest problem is sorting out her feelings about her mother in Colorado, and deciding whether or not to go live with her. Complications include the disappearance of a quint, some not-very-convincing threatening phone calls, and the expected zoo-like atmosphere with five babies in attendance. Pevsner has a good ear for juvenile dialogue and pubescent pressures, and Natalie's dilemma, as well as her subsequent understanding of herself and her parents, rings true.