Glass Stuck in Mold

I am not having a very good studio day. I was fusing this neat heart shaped pendant and the glass got stuck in the mold - mainly due to my neglecting to put kiln paper in the bottom of the mold even though I had kiln washed it. Now I can't get the darn thing out. I have pried and prodded and tapped but no luck. I now have it in the kiln upside down reheating it and hoping for the best. At this point I just want to save the mold. If anyone has any suggestions as to what I can do, please let me know. I have never had this happen before.