A very young witch (13 at her last appearance), Tiffany hails from the chalk downland Rimward of the Ramtops. Her grandmother, Sarah Aching, was a shepherd, and by Ramtop standards was also a witch, although witchcraft was frowned upon on the Chalk, until Tiffany's arrival. Granny Aching was a friend of the Chalk Clan of Nac Mac Feegle, (an army of tiny, blue, rowdy, drunken and vaguely Scottish ne'er-do-wells) and they have befriended Tiffany as the new "hag o' the hills". As Tiffany was their Kelda (Queen) for a short time, the Nac Mac Feegle see her as their responsibility, and there is no time in Tiffany's life since then when they have not (in)discreetly watched her.