Relevant to my current work-in-progress

Why would [Shake­speare] write in a ghost unless it had details to deliver?
—Pat­ti Grayson, Ghost Most Foul

Some sage advice from a YA nov­el I just fin­ished read­ing. In fact the whole sec­ond half of the book has a fair amount of con­nec­tion to my cur­rent novella(?).