TV-Y
S4 • E5 Feb 2, 1976 5mGoing past Smoke Hill, an extinct volcano, Jones and Ivor spot smoke coming from the top. Jones discovers a fire inside the hill and a strange egg. He puts it in Ivor's firebox to keep it warm. Mr Dinwiddy doesn't have any idea what it is so they go off to choir practice. During the practice there seems to be a voice coming from inside Ivor.
