This book follows the story of three ladies who formed a musical partnership, The Dorian Trio. By World War II, they had turned to farming in Llanarth where they kept Welsh indigenous breeds, but their main interest was the Welsh cobs. They were winners at international events. Later, they bequeathed the enterprise to Aberystwyth University College for safekeeping.

Mae'r llyfr hwn yn adrodd stori tair merch a ffurfiodd y Dorian Trio. Erbyn yr Ail Ryfel Byd, troesant eu llaw at ffermio yn Llanarth a chadw bridiau brodorol Cymreig, ond eu prif ddiddordeb oedd y cobiau Cymreig. Roeddent yn enillwyr cyson ar lefel ryngwladol. Gadawsant y fenter i Goleg Prifysgol Aberystwyth yn gymynrodd ,gyda'r bwriad o'i diogelu.