Man Takes Photo of Girlfriend, Turns Pale When He Looks Behind Her

No empty hands

They quickly put on some robes and rushed up the stairs. When the couple entered, they were once again met with an empty and silent room. But this time, they would not leave empty-handed because this time David immediately noticed something. The window he closed and locked yesterday was open again! David distinctively remembered locking it on purpose to ensure nobody could enter, so how was it now unlocked and wide open?