Mysteries According to HumphreyAccording to Humphrey Series
Betty G. Birney
EEK-EEK-EEK! Mrs. Brisbane is missing! Humphrey has always investigated things, like why Speak-Up-Sayeh was so quiet and Tall-Paul and Small-Paul didn't get along, but this is a true mystery--Mrs. Brisbane is missing! She just didn't show up in Room 26 one morning and no one told Humphrey why. The class has a substitute teacher, called Mr. E., but ...