Fearless Fall

Fearless Fall is an achievement/trophy in Dishonored 2.

How to Acquire
During the mission The Good Doctor, Corvo Attano or Emily Kaldwin must climb on the highest roof of the Addermire Institute and drop assassinate or incapacitate a guard below.

A way to reach the top is to either use Blink or Far Reach to climb each successive roof, using chimneys to gain more height. Another way is to climb up to the top of the elevator shaft and use the open window to reach the roof above.

The easiest guard to reach for the drop from that roof is right below along the facade, facing the docks on the other side of the building. Interestingly, killing a Doppelgänger also counts towards this achievement, so summoning one and killing that is also very easy.

Note that this achievement cannot be completed without powers. Смелый прыжок