Author: Gareth F. Williams.

Series: Cyfres Pen Dafad.

One day - quite recently, in fact - a young boy named Derwyn lived in an old cottage in the woods. His parents were both teachers, his mother taught in the primary school and his father at the secondary school, but it was often difficult to tell which one complained the most.

Awdur: Gareth F. Williams.

Cyfres: Cyfres Pen Dafad.

Un tro - yn reit ddiweddar, a dweud y gwir - roedd bachgen ifanc o'r enw Derwyn yn byw efo'i rieni mewn hen fwthyn yn y goedwig. Dysgai ei fam yn yr ysgol gynradd a'i dad yn yr ysgol uwchradd. Anodd iawn oedd dweud pa un ohonyn nhw oedd yn cwyno fwyaf.