While their parents are away doing research, brothers Duffy and Sumo Pugg go with their cousin, Mister Come-and-Go, to Kokalaha Island, where they meet Aunt Lulu and become trapped in an erupting volcano.

In this cumulative tale, a wakeful flea atop a number of sleeping creatures causes a commotion, with just one bite.

In this cumulative tale, a chirping cricket calms a worried mouse, a prowling cat, and other restless creatures, helping them to finally fall asleep.