William aims to complete his plan with his death, as Albert and the others each carry out their roles. Meanwhile, Sherlock deduces William's true reason for having him vanquish the Lord of Crime. Overlooking London, the pair face each other one last time.
Once the devils are cast out,
people's hearts become clear again,
Wenn die Dämonen verschwinden,
klärt der Verstand der Menschen auf
Cuando los demonios son eliminados,
los corazones vuelven a estar limpios,
Une fois les démons éliminés,
leur cœur sera lavé,
Quando os demônios são expulsos,
os corações clareiam novamente
Если Дьявол исчезнет,
 людские души очистятся