Reach the maximum Hidden One Rank

Obtain both disguises

Pay mercenaries 5 times

Use benches to pass time 5 times

Have 10 guards trigger traps

Distract 10 guards with noisemakers

Fully upgrade a weapon

Assassinate 10 guards from hiding spots

Headshot 20 guards with throwing knives

Pickpocket a guard affected by a blowdart

Synchronize all viewpoints

Pickpocket all 18 artifacts and bring them to Dervis