Magic Forums

As always, I don't know if I posted this at the correct place. But anyway. Here's what happened: My cousin's grandfather died, and guess what, my cousin wants to get a hold on her grandfather's spirit. Leaving moral issues, as well as judging aside, I would like you people to give me some ideas for contacting him, and possibly binding him. My cousin also practises magic, and in fact, she thought of something: she had the idea of summoning him and binding him to her aura so that he can sap energy off her.
What do you think? Is her idea a good one? Or rather, do you have any other ideas?
Thanks in advance.