|So, as someone once said, --- Up --- Up --- and AWAY! - Peter Parker
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|New Avengers, Mighty Avengers, Thunderbolts|
The Secret Invasion is a comic book event/crossover storyline published by Marvel Comics that ran from April 2008 to December 2008.
The story involves a subversive, long-term invasion of Earth by the alien Skrulls. Capable of shapeshifting, the Skrulls have secretly replaced many of Marvel's heroes with impostors over a period of years, prior to the overt invasion. Marvel's promotional tagline for the event was "Who do you trust?"