Facets of Power - The Dragon Portal, #3

The hardest stone protects the most precious gems.Someone is killing dwarves. Sabine is new to the city of Razadon, a mecca of stone and dwarven magic. When two clan leaders are murdered in a strange ritual, suspicion falls on the most likely culprits and those newest to the city-Sabine and her companions. The blood of the ancients can fracture even the strongest stone.The seals of the Dragon Portal are growing weaker, and Sabine's running out of time to acquire the remaining artifacts before their world is engulfed in flames.
It's a race against the clock to find out who's responsible for the murders and save her friend's life. But deep within the heart of the mountain, there are some who will do anything to keep Sabine from learning the truth. Even if it means sacrificing her in the process.