CHI TSING is taught martial art by a masked man. When the Leo-stone appears, CHI TSING is asked by him to set off and search for the stone.CHI TSING meets TIN HANG and PAK LUNG on the way. They see traces ofwerewolf and start investigation. Later on, they find out that it isYIP LING-SIU's daughter PING's impersonation. She wants to scare everyone off so that she could possess the stone for herself. The stone has earlier been taken by Craftsman LO CHIU. A trap has beenset. TIN HANG sacrifices his life to rescue PAK LUNG, CHI TSING and YIPPING.YIP TSING hurries back to the Sun Castle to receive her aunt TSING FAand cousin TIT CHU. TSING FA has a wicked plan to usurp the Chieftainstatus from YIP LING SIU. She has YIP PING take some ageing poison.YIP PING ages quickly, but she refuses to yield the Chieftain plaqueto her aunt. YIP LING SIU is invigorating himself in a closed Chamber.