The Things We Find by BL Maxwell

Some things are better left alone
Dane Jones works from home with only his three dogs for company. When he stumbles onto a social media page about urban exploring, he’s curious about different sites around Sacramento that seem like they’d be interesting to investigate. He starts chatting with Griff Warren, and after a few conversations he’s even more excited to go.
Griff Warren is also curious about urban exploring, but he has very little interest in experiencing something paranormal. When the guy he’s been chatting with in the online group is so enthusiastic to go, it’s contagious. They plan to go to a warehouse and while there, experience something they can’t explain.
Dane and Griff were looking for an adventure, but they find more than they bargained for at a deserted farmhouse on the river. When Dane finds an old toy discarded in one of the rooms, both of them are thrown into a world neither understands. Full of cursed objects, strange markings, and powers, neither knows how to handle. Lucky for them, Griff’s Friend knows exactly who can help.