A) Dr. Curtis Conner goes missing in the Florida swamps after finding the Fountain of Youth. When Spidey investigates the scientist's disappearance, he discovers a fifteenth century Spanish conquistador, Ponce de Leon, who is intent upon keeping the magical fountain a secret.
B) Because he hates rock-and-roll for its having replaced classical music in the tastes of the masses, a fiddler with a deadly, sonic violin seeks revenge upon pop-music sponsor Cyrus Flintridge.
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