Fanatic_Squared
When eleven-year-old Celestia Temple's life is defined by foster homes and the ability to slip unnoticed through the world, she's long accepted that she is a shadow-someone people look "through" instead of at. Her only real constant is Rose Tyler, the bright, stubborn young woman assigned to her through a Big Sister program. Rose sees her. Rose cares. And for Celestia, that is enough.
Until the night Henrik's explodes.
When Rose disappears in the aftermath, Celestia's quiet life cracks open. Drawn by a strange feeling she can't explain, she races across London to find her friend-only to stumble into the path of a mysterious stranger known only as the Doctor. A stranger who looks at her like he's been expecting her... even though he absolutely shouldn't.
Thrown into the whirlwind of the Doctor's world-living plastic, alien invasions, and the impossible made real-Celestia discovers that her talent for going unnoticed may not be an accident at all. As she follows the Doctor and Rose across time and space, the shadows she once used for safety begin to reveal dangerous truths: about her past, about a hidden force watching from the edges of the timeline, and about why the universe seems to hold its breath whenever she walks into a room.
But Celestia is tired of being invisible.
And the shadows, for the first time, are stirring.