They say this building is haunted, with ghosts appearing.
Tips
usage
出没 implies something appearing unpredictably or lurking in an area. It's often used for dangerous animals, criminals, or supernatural beings. The pattern is 有…出没 (there are ... lurking/spotted).
mistakes
The 没 here is pronounced mò (4th tone, 'to submerge/disappear'), not méi (2nd tone, 'not have'). This is a different meaning of the character.
