 The next day, Buffy is alarmed by news of Dr. Gregory's disappearance, but the boys in her class are more interested in the beautiful substitute teacher, Natalie French (Musetta Vander), who seems to have a fixation on insects, especially the praying mantis.Miss French suggests making model egg sacs for the upcoming science fair and asks the class for help.She selects Blayne as her lab partner for that day, to be followed by Xander the next day.