Charles G. D. Roberts 
The Heart of the Ancient Wood [EPUB ebook] 

Not indolently soft, like that which sifts in green shadow through the leafage of a summer garden, but tense, alertly and mysteriously expectant, was the silence of the forest. It was somehow like a vast bubble of glass, blown to a fineness so tenuous that a small sound, were it but to strike the one preordained and mystic note, might shatter it down in loud ruin.