thief in the night

A person or thing that moves in a swift and secretive, stealthy, or surreptitious manner. The cancer spread through my lungs and into my bones like a thief in the night, giving me no chance of beating it.

Common Names:

Name	Pronounced	Usage
Melusine	-	Mythology
Jamaar	jə-MAHR	African American (Rare)
Sashi	-	Indian, Kannada
Siegward	-	German
Bernardine	ber-nar-DEEN	French (Rare)
Juraj	YOO-rahy (Croatian)	Croatian, Slovak