BeakYung is like no other Unique monster in all of Silkroad Online. But wait! You can't get to Medusa unless you enter her realm and kill her Guardians.
At 0400, 1000, 1600, 2200 hours SRST (Silkroad Standard time) the Serin Gate opens at the center of the B4 level of the Qin-Shi Tomb. People generally start meeting up there in the half hour prior so it's a good place to get a party. The gate will only stay open for 10 minutes and once it closes you cannot enter the B5 level. If you disconnect while inside or teleport town town, you will respawn at the gate on B4, not even reverse returns will get you back inside.