Author: Sean Chambers; Welsh Adaptation: Manon Steffan Ros.

An original picture story book, following Michewa, a 7 year old girl. One day, to prove herself to her father, who is a successful Mountain Guide, she sets out to climb the 'Lonely Mountain' by her home in a forest village in Tibet. This particular mountain is enveloped in mystery and danger.

Awdur: Sean Chambers; Addasiad Cymraeg: Manon Steffan Ros.

Llyfr stori a llun gwreiddiol, sy'n dilyn Michewa, merch 7 oed. Un diwrnod, i brofi ei hun i'w thad, sy’n Dywysydd Mynydd llwyddiannus, mae hi'n mynd ati i ddringo'r 'Mynydd Unig' ger ei phentref coedwig yn Tibet. Mae'r mynydd penodol hwn wedi'i orchuddio â dirgelwch a pherygl.