Fluke and the Faultline Fiasco by Sam Burns

When an earthquake shakes up Sage’s night, his instinct is to forget about it. They live in California—quakes happen. But this one sends the consciousness that lives in the ley lines running to him in fear, so he and his gunslinger boyfriend set out to investigate. What they uncover is a century-old plot to destroy not only the ley lines, but the city of Junction itself.
Now, they’re in a race against an unknown adversary who wants to annihilate everything they love, and the only man with the answers is Sage’s long-dead Uncle Jonathon. Good thing they only have to read his journals, not deal with the insufferable jerk in person.

Between a heist to steal a magic artifact, Uncle Jonathon’s bigoted ramblings, and one surprise after another from his allies, can Sage find what he needs to save Junction?When an earthquake shakes up Sage’s night, his instinct is to forget about it. They live in California—quakes happen. But this one sends the consciousness that lives in the ley lines running to him in fear, so he and his gunslinger boyfriend set out to investigate. What they uncover is a century-old plot to destroy not only the ley lines, but the city of Junction itself.

Now, they’re in a race against an unknown adversary who wants to annihilate everything they love, and the only man with the answers is Sage’s long-dead Uncle Jonathon. Good thing they only have to read his journals, not deal with the insufferable jerk in person.
Between a heist to steal a magic artifact, Uncle Jonathon’s bigoted ramblings, and one surprise after another from his allies, can Sage find what he needs to save Junction?