Join Captain America, Iron Man, Hulk, Thor, Black Widow, and Hawkeye as they face their biggest enemy yet-the evil robot Ultron!

Bibliographic Details
Main Author:	Palacios, Tomas
Format:	EBOOK
Language:	ENGLISH
Published:	Disney Book Group 2015
Subjects:	Avengers (Fictitious characters) Superheroes Readers (Primary) EBOOK
Lexile Measure: