Author: J. Burchett, S. Vogler; Welsh Adaptation: Siân Lewis.

Series: Achub Anifail.

The body of a white bear is discovered in an Alaskan village, and the twins Ben and Sara are sent to make enquiries into the case. It is obvious that something is not right, as it is unusual for a white bear to come so close to human settlements.

Awdur: J. Burchett, S. Vogler; Addasiad Cymraeg: Siân Lewis.

Cyfres: Achub Anifail.

Mae arth wen wedi ei darganfod yn farw mewn pentref ger Alaska. Mae'n anarferol iawn i arth wen ddod mor agos i annedd bodau dynol ac felly mae rhywbeth mawr o'i le. Unwaith eto, caiff yr efeilliaid Ben a Sara eu gyrru i archwilio'r achos.