a mysterious creature in a white robe walks through the taiga. white ghost in the forest. terrible mystical spirit of

ghost forest halloween scary mystery horror autumn dark spooky tree fantasy woods man fear nature silhouette background shadow white mood creepy evening mystical light trees mysterious evil wood concept sheet celebration holiday fall old green apparition specter spook spirit bogey bogeyman bogie bogle boggart shade haunter boggard bogy fetch eidolon ai generated