a spooky banner background concept for halloween with the silouette of a cemetery leading to a castle

night horror halloween bat castle moon fortress silhouette spooky fear mansion vampire evil fantasy ghost mystery old haunted creepy gothic moonlight black tree background house building nightmare tombstone scary dramatic ancient forest scarey darkness full grave cemetery fog town landscape graveyard fairytale witchcraft twilight dead medieval mediaeval evening light banner concept silouette leading dark bats flying tree generative