All 3 Uses

sinister
in
The Phantom of the Opera
(Edited)

A few rays of light, a wan, sinister light, that seemed to have been stolen from an expiring luminary, fell through some opening or other upon an old tower that raised its pasteboard battlements on the stage; everything, in this deceptive light, adopted a fantastic shape.
Chpt 6 *

sinister = evil, harmful, or frightening
His emotion when speaking of the "monster" struck him as sincere; and, if the Persian had cherished any sinister designs against him, he would not have armed him with his own hands.
Chpt 20
A sinister chuckle.
Chpt 22

Definitions:

(1) (sinister)
evil or harmful; or making an evil or frightening impression
(2) (meaning too rare to warrant focus)
Much more rarely and only in very old usage, sinister can refer to the left side of something.