Rare Superman Comic Sells for $15 Million

A very old and rare comic book called Action Comics No.

1, which first introduced Superman, was sold for $15 million.

This comic is super special because it started the superhero genre.

Only about 100 copies of this comic are known to exist.

The comic was once stolen from actor Nicolas Cage's house but was found and returned to him.

He later sold it for $2.2 million.

The comic's value has gone up a lot over time, especially after it was stolen and then recovered.

It's like the Mona Lisa of comic books, a big deal in American pop culture.