|aThe case of the purloined professor / |cby Judy Cox ; with illustrations by Omar Rayyan.
|aTarrytown, NY : |bMarshall Cavendish, |cc2009.
|a245 p. : |bill. ; |c22 cm.
|aThe tails of Frederick and Ishbu
|aRat brothers Frederick and Ishbu again escape the comfort of their fifth-grade classroom to go on an adventure, this time to help their friend, Natasha, seek her missing father, who is a specialist in the biochemistry of domestic animals.