"Or an obstacle in a river too murky to see through, giving itself away by the way the currents above swirl around it," Ray confirms. "It works well enough for our purposes."

He then blinks. "Oh," he says. "That Raven? The one who took the form of a baby and stole the sun when it was locked in a chest? Wow. I'm honored, sir. Never thought I'd meet you, of all people. My city's... kind of a long way from anywhere that actual ravens live."

He considers the question. "That depends," he says at last. "If we're just investigating, it could be a very difficult thing to decide indeed. No sense acting when you don't know what you're looking at. If we're on a bust, there's usually something awful trying to eat our heads, or otherwise strike us down, so the decision has to be made quickly. There's not always time for proper thought when that happens, I'm afraid."