"I did. I've got a store of magically charged crystals that I used to calibrate it to sense between magic and normal ore. Problem is, it seems to go off randomly. It thought my chair was full of magical ore."

He rubs his chin in frustration.

"My only thought is that there's so much magic in Avalon with people and familiars and the fey, that it's causing this thing to sense that everything is magic."