Dive into the intriguing world of Mark Phillips, the pen name of two talented writers, Randall Garrett and Laurence M. Janifer. Their unique collaboration, inspired by their middle names (Philip and Mark), originated one fateful night at a science-fiction convention—where the cocktails were flowing, and only one of them has ever truly sobered up. Originally titled That Sweet Little Old Lady, Brain Twister takes readers on a thrilling journey with FBI agent Kenneth J. Malone as he navigates the complex web of a telepathic spy. His mission? To uncover the elusive telepath hiding in plain sight, all while grappling with the question how do you catch a mind that can read yours? This captivating novella was nominated for the prestigious Hugo Award in 1960. (Summary from the text and Catharine Eastman)