Sentence:  Generally, women can't do this, but men retain the ancient ability to leave a family and a past. They just unhook themselves, like removing a fake beard, and <WSD>skulk</WSD> discreetly back into society, changed men. Unrecognizable. 
Meaning of the word marked with <WSD> tags:  To move in a stealthy or furtive way; to come or go while trying to avoid detection.