Nicholas Meyer's The Seven-Per-Cent Solution presents a fascinating premise where the world's greatest detective, Sherlock Holmes, succumbs to a debilitating cocaine addiction. Dr. Watson, desperate to save his friend, orchestrates a journey to Vienna, seeking the revolutionary help of Dr. Sigmund Freud. What begins as an unconventional therapy session soon escalates into a thrilling adventure. Holmes and Freud find themselves embroiled in a dangerous conspiracy that transcends the boundaries of psychological healing, demanding their combined intellectual prowess to solve a perplexing mystery and confront a shared enemy. This compelling narrative cleverly blends historical figures with a classic literary character.