One Day Buffy get a pep talk from her biology teacher,Dr. Gregory. Who sadly turns up with out a head the next day. The Substitute Ms. Natalie French. She always talks about the Praying Mantis and has the boys hormones on overdrive. Buffy's first suspiscion is Claw a Vampire who has had his hand replaced by Sharp pointy things. But she is surprised when that Vampire flees at the sight of the substitute. Giles then goes to his friend Dr. Carlyle Ferris who is an expert on entomolgy and mythology. She is also quite mad from trying to hunt down this SheMantis. It turns out the Ms.French is the SheMantis and has taken Xander and Blayne to mate and then kill them. Buffy manages to kill the demon and saves the day.