The sad thing is these puzzles probably wouldn't keep Sherlock busy for even an hour. He's just that good.

"Dragon," R takes the rings, jangling after Wyatt. He wracks his brain for what he knows about dragons. R can't tell you where he was born or what his favorite movie was. Somehow he remembers the concept of a dragon. Big, mouth full of fangs. Wings, blows fire? "Shiny. Trea-sure...chest?"

Okay, so R's probably falling back on cliches here. It's all he has.