Author: Meilyr Siôn.

Series: Anturiaethau Ioan Arthur.

Things have been tough for Ioan Arthur - ever since his father passed away. He's moved house and changed school, but he has no idea that things are about to get a lot more complicated when he's thrown back in time. He goes to a world of secret sects, supernatural powers, telepathy and a myriad of dark secrets hiding in the shadow, where he will find the truth about his father.

Awdur: Meilyr Siôn.

Cyfres: Anturiaethau Ioan Arthur.

Dydy bywyd ddim yn hawdd i Ioan Arthur ers iddo golli ei dad, symud tŷ a newid ysgol, ond ychydig a wyddai bod pethau ar fin gwaethygu wrth iddo gael ei daflu nôl mewn amser i fyd o fudiadau cudd, brwydrau Llychlynwyr, pwerau arallfydol, telepathi a'r holl gyfrinachau sy'n llechu yng nghysgod y darian, gan gynnwys y gwir am ei dad.