The Forgotten Rune - Dan Kotler, #13

A mysterious artifact holds the key to unraveling the mystery behind a senator's disappearance-but it may be humanity's greatest threat. Dr. Kotler is in a whole other world of trouble, when he's recruited to decipher a mysterious rune, found at a recently discovered archaeological dig site in Turkey. The site hints at an age of humanity far older than mainstream science is willing to accept. But the artifact hints at a universe that is much stranger than anything humanity has ever seen. Kotler must solve the enigma of the forgotten rune-a mystery that has already led to the disappearance of several people. The power of the rune may be more than humanity is ready to handle.