Doesn't Look Like a Hell Dimension

If you fall through a dimensional portal, do you expect to end up in the time-travelling ship of an alien? Buffy didn't.

Audio: HellDimension.mp3 (17 mins, 13M)

(AU from end of "The Gift" for Buffy, also AU from the end of "Doomsday" for Doctor Who)

This started as a series of drabbles done for the 2008 tthdrabbles Mod Birthday challenge. People suggested I expand them into a proper story, so here it is.

Thanks to Jacqueline T. and Nicola M. for beta-reading.

Children of Time (Round 2) runner-up