Marvel Comics was a group of superhero comics created by Marvel Corporation, including the Avengers, Spiderman, Iron Man, Thor, Captain America, Black Widow, Hulk, Thor, and the Avengers. These comics were set in a fictional universe and told the story of superheroes protecting the earth and stopping evil forces. Marvel Comics had many fans around the world and were widely used in movies, TV series, games, and other forms of entertainment.
I'm not sure specifically as I haven't read it. But generally, it might be about a magical world where there are intense battles or onslaughts of some sort, perhaps magical creatures fighting against each other or a group of magic - users facing challenges.
The Avengers originated in Marvel Comics. Marvel has developed a vast universe of characters and storylines, and the Avengers are a key part of it. Their adventures have been adapted into various forms of media, including movies and TV shows.
Captain Marvel is Carol Danvers. She gained her powers through an interaction with alien technology and has become a powerful hero in the Marvel universe.