Ghost Albums are private photo albums that allow you to hide certain photos.
When you make a Ghost (hidden) Album, this album is temporarily removed from your account. It can only be brought back (summoned) by typing its exact name in the "Summon Ghost Album" field. This way, you can deny the existence of the folder entirely.
To create a Ghost Album:
1) Hover over the album's thumbnail and click on the three dot icon.
2) Click on the black and white eye icon.
3) Verify the album's name by typing it in exactly as it is.
4) Select Make it Ghost.
Important! If you forget the name of your album, it will become inaccessible forever.