decompose (decompose)

It became difficult to follow the path, and they were very tired. Their legs seemed leaden. Strange furtive noises ran among the bushes and reeds on either side of them; and if they looked up to the pale sky, they caught sight of queer gnarled and knobbly faces that gloomed dark against the twilight, and leered down at them from the high bank and the edges of the wood.