Welcome to Lostpedia Answers. What would you like to know?

The actress that played Shannon did not want to come back for season 6. They had to write her off.
Don't forget the fact that Boone explains why his sister isn't with him. He tells Locke how he went to Sydney to bring his sister home and she refused to come with him.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.