The Shard of Palrinah: Book 2 of The Remus Rothwyn Chronicles
by T.P. Grish
After averting war between Humankind and Fey, Remus and Elaina set out for further adventures, until they meet their old friend Perfidian, the bard.
They discover that the brewing war between the Steelwielder and Paragonite factions holds a deeper and darker mystery involving an object of power.
This leads to a deadly game of cat and mouse between the friends, the factions, and sinister Fey.