Crosby Bonsall has 5 audiobooks on Listento.it, narrated by 2 narrators. The most-rated is Mine's the Best.

Wizard's Private Eyes don't want any girls in their clubhouse. But a funny little man double-crosses the boys with a message in code. Then Marigold and her girlfriends get to show just how much the private eyes really need them.
©1980 Crosby Bonsall (P)2012 HarperCollinsPublishers

Who's afraid of the dark? Every night at bedtime, Stella the dog shakes and shivers. She sees scary shapes and hears scary noises. Stella is afraid of the dark! At least that's what her owner says. But that might not be the whole story....
©1980 Crosby Bonsall (P)2011 HarperCollinsPublishers

The four members of the Private Eyes Club - Skinny, Wizard, Snitch, and Tubby - solve the baffling case of the missing cat.
©1965 Crosby Bonsall (P)2011 HarperCollinsPublishers

Older brother thinks he knows the rules to hide-and-seek. But little sister has her own idea of how to play. And the resulting confusion, compounded by a lively dog, is hilarious. Crosby Bonsall's appealing story and simple text will delight young listeners.
©1972 Crosby Bonsall (P)2012 HarperCollinsPublishers

Two boys. Two balloons. Each boy thinks his balloon is best. What do you think?
©1980 Crosby Bonsall (P)2011 HarperCollinsPublishers