Become a shadow unseen

Come to fisticuffs, but for good reason

Deal with a gift from a secret admirer

Finish A Study in Green Case

Find a way inside a secret room

Fully distract 25 enemies with rocks.

Gather a total of 60 relics.

Win $1500 playing poker.

You performed a drop assassination of at least 150 meters in the Kill Cascade challenge

Finish Prey Tell Case

Locate the hideout

You completed Train Runner before the train arrives at the station

Gather all the memory cards.