Sentence:  Each time they lay down there together, as if she obeyed a voice that came out of the quilt telling her to put the light out, she would extinguish the candle flame between her finger-tips. All around them, the <WSD>tactility</WSD> of the dark. 
Meaning of the word marked with <WSD> tags:  The condition of being tactile (relating to or able to be perceived by the sense of touch).