King's Passage

This area is a accessible from Drangleic Castle's Central Castle bonfire. You need to get the Key to King's Passage which is found on the top of the castle, accessible via lift.

Continue along the passage and loot the Alluring Skull x3 to the right. Take note of the statues with the head; these will come to life so don't get caught off guard. You can fall back to the corridor where you came from so you can pick them off one by one. Loot the skeletons along the way to get a Lifegem, and Soul of a Proud Knight and Twinkling Titanite.

At the end of the passage, right before the misty door lies a summon sign. You can summon Benhart of Jugo to help you in the upcoming boss battle.

Boss: Looking Glass Knight

This boss is slow and can be easily sniped from a distance. It can jump-and-slash or run-and-lunge to quickly close the distance between the two of you. The boss attacks slowly, which gives you enough time to recover or counterattack. It is vulnerable when summoning lightning which it will use to execute a wide slash in front of it. Melee characters can circle around him and attack him from behind to get some free hits. His shield reflects any magic attack so attack only with spells when he's summoning lightning or right after he finishes his attack.

Later in the battle, the boss will stop with its shield on the ground. You can attack it at this point, right before he summons a dark spirit from his mirror. When this happens, take out his minion first then proceed in taking him out.

After the battle, loot the chest beside the lift to get Soul Bolt, Spell Quartz Ring +2, and Bonfire Ascetic x3. After getting the treasures, step on the lift and ride it down.

Continue along the tunnel until you reach a torch. Turn to the right and destroy the roots to loot a Green Blossom from the corpse. Follow the path until you reach a bonfire and the new area.