NEW YORK (CNNMoney.com) -- There's a multi-million-dollar battle brewing between superheroes.
Just a month after a Batman comic knocked Superman from his perch as the highest-selling comic book ever, Clark Kent's alias is back for revenge. A high-quality copy of Action Comics #1, which marks Superman's 1938 debut, sold for $1.5 million on Monday.
A lower quality copy of Action Comics #1 was the first comic book to reach the $1 million mark in February, but it only held the record for three days before a copy of Detective Comics #27 - the comic book that marked the first appearance of Batman in 1939 - netted $1.08 million at auction.
ComicConnect.com, an online comics seller, claimed to make both the record-breaking $1.5 million sale Monday and the $1 million sale in February. Vincent Zurzolo, who co-owns the site with Stephen Fishler, said headlines about the sales last month helped drive interest in comic book trades since then.
Three million-dollar sales in a month, regardless of the character, are great news for comic book fans looking to increase the value of their collections, said Ed Jaster, vice president of Heritage Auctions, a Dallas-based auction firm that sold the Batman comic book last month.
"This puts the hobby in a much greater light," he said. "People now have to think of vintage comics with the same kind of respect that they would with American paintings."
As for the age-old question of who would win in a fight, Zurzolo said that,- hands down, it's the "Man of Steel."
Lawmakers grill Wells Fargo CEO John Stumpf about CNNMoney report on the bank retaliating against whistleblowers who flagged fake accounts. More
It's 100 days since the Brexit vote and the British economy appears to be humming along nicely. Stay tuned! More
In 1998, Ntsiki Biyela won a scholarship to study wine making. Now she's about to launch her own brand. More
California workers who don't already have access to a retirement plan at work will soon be enrolled in a new state-run IRA savings plan. More