“Who knocks?’ ‘I, who was beautiful,Beyond all dreams to restore,I from the roots of the dark thorn am hither,And knock on the door.”Walter de la Mare The Ghost.
“Some one came knockingAt my wee, small door;Some one came knocking,I’m sure—sure—sure.”Walter de la Mare Some One Came Knocking.
“"Is anybody there?" said the Traveler,Knocking on the moonlit door;And his horse in the silence champed the grassesOf the forest's ferny floor.”Walter de la Mare The Listeners (1912)