An original copy of the first edition of the first "Superman" comic from 1939 — which had been lying undiscovered in an attic for decades — was sold at auction on Thursday for more than $9 million, thought to be highest price paid for a comic book.

"Superman #1" was described as "the pinnacle of comic collecting" by auction house Heritage Auctions and the finest known copy ever sold, breaking the previous record of $6 million.

The hallowed comic was found in a box in an attic by three brothers in northern California, as they cleared out the house of their mother after her death. The trio have said their mom spoke of having original copies of comic books from the 1930s but couldn't remember where — it was dismissed as a family legend.

New York's fall art auctions expected to bring in $

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