Beowulf

Here you can find an easier version of the story:

http://www.mainlesson.com/display.php?author=marshall&book=beowulf&story=_contents

And here more about the book

http://www.historyforkids.org/learn/medieval/literature/beowulf.htm

Beowulf on wikipedia:

http://en.wikipedia.org/wiki/Beowulf

Thomas Bulfinch (1796–1867) version of the story:
http://www.bartleby.com/182/301.html

you can find some picture of the story here:
http://www.jnanam.net/beowulf_art/http://www.sacred-texts.com/neu/eng/hml/hml05.htm