The Purple Dragon (Doc Savage, No. 91) by Robeson, Kenneth published by Bantam (1978) [Mass Market Paperback]

When the graduates of Doc's criminal academy face an unexpected dilemma, they find themselves slipping back into their old ways. Surrounded by mischief and mayhem, a master trickster takes center stage, weaving a tale of clever schemes and thrilling escapades. As old identities resurface, the stakes rise, and laughter mingles with tension in this fast-paced adventure.

Against a backdrop of vibrant characters and surprising twists, readers are drawn into a world where wit and cunning reign supreme. With every page, the stakes get higher, and the camaraderie and chaos create an unforgettable experience.