Amelia Croft (Legend Timeline)

Lady Amelia Croft, née DeMornay, was the wife of Lord Richard James Croft and the mother of Lara Croft until her disappearance when the family's plane crashed on The Himalaya mountains in Nepal when Lara was young about 8 or 9 years old.

Story
After the plane crashed, Amelia and Lara were in an abandoned temple in the Himalayas of Nepal, they were looking for something to make fire and warm themselves up, Lara found the sword in the stone and touched it un-intentionally which activated it, Lara's mother Amelia came in and told her to stay back, Lara pointed her finger while saying "there's something in the light" but it was actually the future Lara telling her mother not to touch the sword, Amanda (from the future) told Lara to pull the sword else it would explode though she was talking to Lara, but Amelia from the past overheard this and desperately pulled the sword without hesitating thus causing her disappearance.

Lara figured all of this out when she collected the sword fragments of Excalibur, and reforged it with her mother's amulet (the Ghalali Key).

Lara decides to find out about what happened to her mother and in 'Tomb Raider: Underworld'', Natla tells Lara that her mother is in Helheim and that Helheim and Avalon are one and the same.

Fate
Her fate is unknown, however in Tomb Raider: Underworld after searching for her lost mother Lara finds her overlooking the Sea of Eitr, after Lara calling her Amelia Croft turned around, it wasn't till then that Lara saw her mother had half her body turned into a thrall, Lara said 'you are not my mother, my mother died a long time ago' just before shooting her off the edge and into the Etir.

It is unknown whether Amelia Croft was or was not a Thrall.

Later, Lara notices the ornate stone dais portal with the sword in place Lara assumes that Amelia tried to use this portal to escape but didn't know how to use it, Lara and Amanda work together to pull on the same sword that Lara's mother used to go to Avalon. They come out the other side which is in the Himalayas of Nepal, presumably where Lara's mother did. Amanda is about to attack Lara but Lara convinces her that killing her would change nothing, so Amanda leaves. There is a skeleton on the floor next to where Lara is standing, Lara bids a final farewell to her mother and leaves.