Leila playing the recorder in the middle of the night
Thought that was a creepy scene, when Emily pulls it from Leila's mouth you can see black ectoplasm drip from the hole and enters her mouth, then she starts coughing and spitting out bits of ectoplasm.
What exactly was she doing though? was it how Toby entered Leila's body, basically? or were the notes she was playing were Demonic somehow? I noticed these 'waves' coming from the recorder.