Author: E Blyton, Sufiya Ahmed; Welsh Adaptation: Manon Steffan Ros.

Series: Pump Prysur.

A Welsh adaptation by Manon Steffan Ros of The Famous Five: The Mysterious Noise. While camping on Curig Island, the five friends hear a strange noise coming from the castle. Dic's story about the pirate ghosts wasn't true... was it?

Awdur: E Blyton, Sufiya Ahmed; Addasiad Cymraeg: Manon Steffan Ros.

Cyfres: Pump Prysur.

Addasiad Cymraeg Manon Steffan Ros o The Famous Five: The Mysterious Noise. Wrth wersylla ar Ynys Curig mae'r Pump Prysur yn clywed sŵn rhyfedd yn dod o'r castell. Doedd stori Dic am ysbrydion y môr-ladron ddim yn wir… oedd hi?