Collects Marvel Adventures: Avengers (2006) #21, Amazing Spider-Man (1963) #86, Daredevil (1964) #99, Avengers (1963) #111, Black Widow & the Marvel Girls (2009) #1. Black Widow is one of the Marvel-Verse’s greatest heroes - and these are her most thrilling adventures! When the Crimson Dynamo invades Avengers Tower, a certain superspy is on his trail! Spider-Man must beware the Black Widow in the classic tale that introduced Natasha Romanoff’s most iconic costume! Then, the Widow is torn between her heroic partnership with Daredevil and a place in the ranks of the Avengers! Plus: Before there was a Black Widow, there was the Red Room - a brutal KGB training ground! Now a deadly mission casts Natasha’s mind back to her escape from the Red Room - and the unlikely ally who assisted her!