Hanna-Barbera Scooby-Doo...Mystery Comics #28

In "The Ancient Astronaut," Scooby-Doo and the gang investigate a mysterious sarcophagus that coughs and smokes at the Museum of Ancient Art, leading to a stolen artifact called the Ancient Astronaut and a trail that takes them to Central America. Written by Vic Lockman and illustrated by Dan Spiegle—whose dynamic art defines the issue's look—this 1974 Western Comics adventure blends classic mystery with a touch of the bizarre, all captured in a cover by Spiegle that perfectly sets the tone.