Ectoplasm+2

Ectoplasm- noun- a substance the produces spiritual matter.

page 34 "He informed me that he was in the 'artistic game" and I gathered later that he was a photographer and made the dim enlargement of Mrs. Wilson's mother which hovered like an ectoplasm on the wall."

"I was walking down the street and saw a homeless man spitting out a lot of ectoplam; he must have been a ghost."