Tribute in Flames

Tribute in Flames! is a story in Scooby-Doo... Mystery Comics #22

Premise
Pyro, the Spirit of the Volcano, threatens to bury the town of Crater Junction in lava unless he receives a tribute in diamonds.

Characters

 * Scooby-Doo
 * Shaggy Rogers
 * Fred Jones
 * Daphne Blake
 * Velma Dinkley
 * Frisley
 * Mayor Dorf
 * Professor Solomon
 * Stern