Allegiant, Chapter 50 says:
"From the corner of my eye, I see David slumped over in his chair.
And my mother walking out from behind him.
She is dressed the same as she was when I last saw her, Abnegation gray stained with her blood, with bare arms to show her tattoo. There are still bullet holes in her shirt; through them I can see her skin, red but no longer bleeding, as if she's frozen in time. Her dull blond hair is tied into a knot, but a few loose strands frame her face in gold.
I know she can't be alive, but I don't know if I'm seeing her now because I'm delirious from blood loss or if the death serum has addled my thoughts or if he is here in some other way. She kneels next to me and touches a cool hand to my cheek.
"Hello, Beatrice," she says, and she smiles.
"Am I done yet?" I say, and I'm not sure if I say it or if I think it and she hears it.
"Yes," she says, her eyes bright with tears, "My dear child, you've done so well.""
But now…
"Hello, Beatrice," she says, and she smiles.
"Am I done yet?" I say, and I'm not sure if I say it or if I think it and she hears it.
"No," she says, her eyes bright with tears, "My dear child, you've done so well, but you're not done yet. You have to leave them now, but you'll be back, I promise."
"But Tobias-" I protest. "Christina, Caleb, the others-"
"You'll see them all again, I promise," she says. "Come on now, just for a while."
It all fades to nothingness until I wake up again.