What happened to Luna Lovegood during 'Harry Potter and the Deathly Hallows'?

Go to http://en.wikipedia.org/wiki/Luna_Lovegood#Harry_Potter_and_the_Deathly_Hallows

This will tell you about the role Luna plays in the last book. Other information about her is available on this page.

well... her father Xenophilius has his on magazine called the Quibbler, but when voldemort takes over the world (wizard and muggle)

xenophilius writes good things supporting Harry Potter, so the death eaters kid nap Luna until xenophilus gets Harry Potter to them, and when Harry Potter , Ron and Hermione go to see hm about the deathly hallows he tries to capture them to get his daughter back but they escape just in time as Luna and her dads house burns to the ground..

She married Rolf Scamander and had twin boys Lorcan Scamander and Lysander Scamander.