Sentence:  The road leading south along the river was shaded with old trees , and in the moonlight the silvery landscape was like a setting for <WSD>trolls</WSD> and wood gods rather than the Hudson River Valley of his boyhood memories . 
Meaning of the word marked with <WSD> tags:  (Scandanavian folklore) a supernatural creature (either a dwarf or a giant) that is supposed to live in caves or in the mountains