Fantastic Four #164 (1975)

"The Crusader Syndrome!"  Script by Roy Thomas. Art by George Perez (1st art on the Fantastic Four series) & Joe Sinnott. Cover by Jack Kirby and Joe Sinnott. Johnny Storm's date in Greenwich Village is rudely interrupted by the stark raving mad Crusader! Who is the Crusader? And where did he come from? The Human Torch wants to know! But once he's blinded in battle by his mysterious adversary, the torch only wants to survive! First appearance of Frankie Raye. (This issue includes a full page ad for Hostess Fruit Pies featuring the Hulk vs. the Abomination and Wendigo.)

Key book; first appearance of Frankie Raye (aka Nova, the future herald of Galactus); First appearance of the Crusader; First modern appearance of Marvel Boy. Good/very good condition.