"Motor Matt's Clue; or, The Phantom Auto" by Stanley R. Matthews is a thrilling adventure novel written in the early 20th century, featuring fast-paced motor fiction. The story centers around the courageous protagonist, Motor Matt, and his friend Carl Pretzel, as they encounter a mysterious and seemingly haunted automobile in New Mexico. The narrative sets the tone for a blend of mystery and excitement as they seek to unravel the secrets behind the phantom car while navigating various challenges and unexpected encounters. At the start of the tale, Motor Matt and Carl are driving the Red Flier along a dangerous cliffside road when they witness a ghost-like white automobile gliding smoothly without a driver. Intrigued and spurred on by curiosity, Matt decides to follow the mysterious vehicle despite Carl's trepidation. They soon encounter Dick Ferral, a young man with ties to an estate that holds deeper secrets, and discover strange events unfolding in the night, including mysterious yells and the sudden disappearance of the phantom auto. As the characters' paths intertwine, the stage is set for a mix of suspense, adventure, and the exploration of hidden motives amid colorful, early automotive-era settings. (This is an automatically generated summary.)