Lud-In-The-Mist by Hope Mirrlees — Read

In the interval between his two letters -- the one to Hempie, and the one to Master Nathaniel -- Luke decided that his suspicions had been groundless, for the days at the farm were buzzing by with a soothing hum like that of summer insects, and Ranulph was growing gay and sunburned.

Then towards autumn Ranulph had begun to wilt, and finally Luke overheard the strange conversation he had reported in his letter to Master Nathaniel, and once again the farm grew hateful to him, and he followed Ranulph as if he were his shadow and counted the hours for the order to come from Master Nathaniel bidding them return to Lud.