Mercy is the Mark

Mercy is the Mark is a hidden achievement/trophy in Dishonored.
==How to Acquire==
The achievement can be earned by choosing the non-lethal way of neutralizing Daud during the mission The Flooded District.
==Trivia==
This might be a reference to a line of the Sci-fi series: Firefly which is spoken by Captain Malcolm Ryenolds after winning a duel and choosing not to execute his opponent.
de:Gnade vor Recht
ru:Милосердие
it:Il Marchio Della Pietà
es:Clemencia es la señal
Category:Dishonored Achievements