User blog comment:Unownshipper/Can "Burial at Sea" be counted as canon?/@comment-27060741-20151010040105/@comment-189.35.241.65-20160220171000

The Comstock from BAS, the Luteces and Elizabeth weren't erased because they were all in an alternative reality in wich Columbia didn't exist. The Elizabeth from BAS is the same one who helps Booker in the main story. Being in the Sea of Doors when Columbia was erased saved her from ceasing to exist.