Quotation from: The Chessmen of Mars

Written by: Edgar Rice Burroughs

Ghek drew his dagger from its sheath. His eyes turned toward the
singing girl. Luud's glance wavered from the eyes of the man to
the face of Tara, and the instant that the latter's song
distracted his attention from his victim, Gahan of Gathol shook
himself and as with a supreme effort of will forced his eyes to
the wall above Luud's hideous head. Ghek raised his dagger above
his right shoulder, took a single quick step forward, and struck.
The girl's song ended in a stifled scream as she leaped forward
with the evident intention of frustrating the kaldane's purpose;
but she was too late, and well it was, for an instant later she
realized the purpose of Ghek's act as she saw the dagger fly from
his hand, pass Gahan's shoulder, and sink full to the guard in
the soft face of Luud.