Mu Online/Blood Castle

Blood Castle is an event where players must recover a fallen angel's weapon at the end of the castle. Players in the event progress through different stages of the castle, including killing a certain amount of monsters and destroying a gate and a statue. When the statue is destroyed, the fallen angel's weapon will be recovered, and should be returned to the fallen angel. Once it is returned, the player who returned it will be rewarded with two Jewels of Chaos, some zen and some experience.