A Path of Endless Crossroads. The Tipping World, #1

No one but a mage can kill a mage, according to the saying. And now they're vanishing. From the ashes of a terrible war rose a system that elevated peace and trade. Its enforcers: mages, possessed of uncanny martial skills and the ability to change the world around them just by thinking. Their centuries-long lives, they devote to others and not themselves. Somewhere under these ideals, though, a canker grows.
Two bodies of mages have gone missing, and no one has a solid theory what became of them; they're the only people in their world who carry swords or have power like theirs, to warp reality with a thought, to find their way in the dark, to hear lies and read feelings. Their leaders are locked in dispute, unwilling to face the truth. The answer to the riddle is so obvious it's an adage tacked onto every story people tell about them: who could have betrayed them if not them?A Path of Endless Crossroads is the first book in a must-read epic fantasy series that checks every box, from political intrigue to stunning battle sequences, a fresh generation of heroes coming of age and the ancient, cunning, morally-gray adepts who mentor them.