Author: Adam Blade; Welsh Adaptation: Tudur Dylan Jones.

Series: Byd y Bwystfilod: 3.

This is the third title from the range, Cyfres Byd y Bwystfilod. In this book, Tom must free the magical beasts of Avantia from an evil spell. Armed with a sword and shield from Aduro, Tom sets off to face Arcta The Mountain Giant. Can Tom save his land from destruction? Can you survive the Beast Quest?

Awdur: Adam Blade; Addasiad Cymraeg: Tudur Dylan Jones.

Cyfres: Byd y Bwystfilod: 3.

Mae'n rhaid i Tom ryddhau bwystfilod lledrithiol Afantia o felltith ddieflig. Gyda chleddyf a tharian a gafodd gan y Dewin Aduro, mae'n cychwyn ar ei daith i wynebu Idris, Cawr y Mynydd. All Tom achub ei wlad rhag cael ei dinistro? Wyt ti'n mynd i oroesi Byd y Bwystfilod?