While collecting soda pop bottles, Jimmy Carson (Operative Three) makes a startling discovery. There are diamonds hidden inside a bottle! When he reports his find to Brains (X), the Benton and Carson International Detective Agency swings into high gear. Trying to find the jewel thieves leads them on a journey fraught with mystery and danger. Run ins with a gang of juvenile delinquents lead to some hair-raising trouble!
I've long ago misplaced my original books in this series which I read in the 60s and 70s, but the current author has so closely captured the cadence, voice, style of the original I was quite content and transported back to a simpler time reading about the adventures of an "every-boy" Jimmy Carson and his brainiac friend who are the chief detectives in the Benton + Carson International Detective Agency. Bummed that I didn't take care of the originals, I'd love to re-read them.