A young witch (9 during The Wee Free Men, 11 in A Hat Full of Sky, 12 and 13 in Wintersmith, almost 16 in I Shall Wear Midnight, and in her late teens in The Shepherd's Crown), Tiffany hails from the Chalk, a Barony and a region of Downland Rimward of the Ramtops. Her family, the Achings are the tenants of the Home Farm of the local Barony, the de Chumsfanleigh (pronounced de Chuffley). Her late grandmother, Sarah Aching (who died 2 years prior to the events in The Wee Free Men), was a shepherd, and by Ramtop standards she was also a witch, although witchcraft was frowned upon on the Chalk until Tiffany openly practised it. Granny Aching was a friend of the Chalk's Clan of Nac Mac Feegles (an army of tiny, tattoed in blue colour, rowdy, drunken and vaguely Scottish 'pictsies'), and they have befriended Tiffany as the new hag o' the hills. As Tiffany filled-in as their Kelda (Queen) for a short time, the Nac Mac Feegle continue to see her as their responsibility, and there is no time in Tiffany's life since then which when they have not (in)discreetly watched her.