Where is the real book of shadows from charmed today?

At the end of the eight and last season, both Brad Kern and Holly Marie Combs wanted to take the book with them. Brad Kern eventualy got it. He is not intending to sell it but has mentioned making replica's a couple of times. There still are no official replica's though very accurate replica's can be bought on Ebay.com, and other sites, just google a bit. Here's an amazing site: www.moon-shimmer-studio.webs.com