Mae Clogyn Aur Yr Wyddgrug ar ei ffordd o'r Amgueddfa Brydeinig i Amgueddfa fechan Sir Gar, one mae'n poeni am Fioled.
Della succeeds in securing the notorious Mold Cape for the Museum as a blockbuster item, but she is worried that Fioled might try to get her hands on it. The tension increases when Della receives an unexpected visit at her workplace.
