Stone of Omens

Fíli has always known that he wasn't Dís and Vali's natural born son, but he's happy to help Kíli find his feet as heir to the throne of Erebor and all of Durin's Folk. Until betrayal comes to Erebor from outside and within and he finds himself with his brother, a hobbit and several others travelling from one end of Middle Earth to the other to find the solution