A historical fantasy novel set in 1752 when the Julian calendar replaced the Gregorian calendar. It features Martha, the apothecary's daughter, who is transported to Annwn – the Celtic otherworld – by Madws (the character who controls time), and relates her amazing experiences. This multilayered piece of fiction is packed with adventure and plenty of humour.

Nofel ffantasi hanesyddol wedi'i gosod yn 1752 adeg y newid o'r calendar Iwlaidd i'r calendr Gregoraidd. Mae'n adrodd hanes Martha, merch y potecari, a gludir i Annwn gan Madws (y cymeriad sy'n rheoli amser), a'i hanturiaethau rhyfeddol yno. Mae hon yn nofel glyfar, amlhaenog, egnïol a gwahanol, gyda digon o hiwmor ac o fynd ynddi.