Author: Rebecca Thomas.

Who is the hero that Wales needs today? A group of children from Bannau Brycheiniog think they know the answer! It will be an easy task to find King Arthur, to wake him and persuade him to help them to save the world. But they are unprepared for the adventure that follows...

Awdur: Rebecca Thomas.

Pwy yw'r arwr sydd ei angen ar Gymru heddiw? Mae criw o blant o Fannau Brycheiniog yn meddwl eu bod nhw'n gwybod yr ateb! Tasg ddigon syml yw dod o hyd i'r Brenin Arthur, ei ddeffro a'i berswadio i'w helpu i achub y byd. Ond does neb yn barod am yr antur fydd yn dilyn...