Percy Jackson and the Olympians: Legends

Halcyon's Mansion was the home and prison of Greek demigod Halcyon Green. It was used as a trap to punish Hal for revealing the future to a girl who was supposed to die, luring unsuspecting demigods to their deaths. The structure itself is two floors. The door is heavily enchanted and the drapes are deadly sludge that creeps up anything that touches it. Years ago, Thalia Grace and Luke Castellan discovered the mansion while being lead there by Amaltheia. The two demigods spent the day trapped in the mansion, trying to escape until Halcyon Green sacrifices himself to distract the Leucrotae and let the young half-bloods escape.