Book 3

Two stories chronicle the ups and downs of a special friendship between two hippopotamuses.

Book 4

Three stories chronicle the ups and downs of a special friendship between two hippopotamuses.

George and Martha

by James Marshall

Published 1 January 1972
Relates several episodes in the friendship of two hippopotamuses.

In The big scare, George scares Martha one day and she vows revenge, but as George braces himself for the big scare, where is Martha? In The amusement park, George and Martha are having a wonderful time at the park until they enter the Tunnel of Love!

George and Martha: One Fine Day

by James Marshall

Published 27 September 1978
Five new episodes in the friendship of the two hippopotamuses.

Two brief episodes about two friends, George and Martha, who happen to be hippopotamuses.