I did like it very much, but there were a few issues I had with it. (That's right: time to get unreasonably technical and pedantic!) It was, namely, the convoluted and unconvincing explanation for dragon's fire-breathing. Platinum is a rare mineral, and it's impractical for every member of a dragon species to seek it out in their waking moments when there's prey to hunt and territory to defend and genes to pass on. That's basically the equivalent of treasure-hunting in the middle of the woods. It ultimately makes for a limited, heavily time- and effort-consuming, and unnecessary weapon that teeth and claws can easily replace. There's an easier explanation for fire-breathing, however. A dragon could just have a duct in its throat that produces a caustic, flammable fluid, that can be sprayed out of the mouth to burn enemies. Like a bombardier beetle. (Kudos to crackpot creationist Duane Gish for this idea - he suggested that Parasaurolophus was able to do this, to explain dragon myths.) To their credit, though, the whole idea about a false palate to protect the throat from the fire was a very clever addition.