Leia quoted City of Bones by Martha Wells
For years, Khat had heard rumors of incidents Like this, but this was the first he had actually witnessed. Everyone knew the Ancients' magic made people as mad as sun-poisoned beggars, but the Warders practiced it despite the inherent danger. The street fortune tellers, ghostcallers, fakirs, and kris shamen used only natural magics, simples and healing and divination, and even they sometimes went too far and ruined themselves; the older powers that Warders played with were far more deadly. Khat shook his head grimly and Looked toward the horizon and the black still sea of the Fringe rock in the distance. And they think the Waste is dangerous.
— City of Bones by Martha Wells (5%)
This book's been giving me Broken Earth vibes. Though written decade(s?) before. This is just the strongest point from the first chapter.
We'll see how it goes!