darkling
 (ad.)在暗中(a.)黑暗的,令人可怕的
 Dark·ling, p. pr. & a.
 1. Becoming dark or gloomy; frowing.
    His honest brows darkling as he looked towards me.   --Thackeray.
 2. Dark; gloomy. “The darkling precipice.”
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 Dark·ling adv.  In the dark. [Poetic]
    So, out went the candle, and we were left darkling.   --Shak.
 As the wakeful bird
 Sings darkling.   --Milton.
 darkling
      adj 1: uncannily or threateningly dark or obscure; "a darkling
             glance"; "secret operatives and darkling
             conspiracies"-Archibald MacLeish
      2: (poetic) occurring in the dark or night; "a darkling
         journey"