Author's Notes:
One and Susan. Written for QuailFence as a treat in Space Swap 2022. Originally posted to AO3.

The Doctor makes Susan a promise.

They've been a few days away from the Homeworld when his little granddaughter seems to get quieter. At first she dragged him out onto each new planet, eager to explore; now she sticks to his side.

"Is something wrong?" he asks her. "Did something bad happen? Are you regretting that you came?"

She shakes her head, reluctant to speak. But then she admits: "They're coming for us, aren't they? They'll take us Home. I shall have to leave you."

"Never," he vows, and for all the ways he might fail to give her the perfect childhood, he keeps his promise.