Damn, that old man really showed up out of nowhere and punched a hole through Lacile's chest. No monologue or anything, just offed him and dipped. Imagine how short other shounen series would be if antagonists could be so straightforward.
That part about the dragon hearts was touching. The Rato and Tsuta really need to work on their communication though, it's messed up that the latter didn't even know where their loved ones were buried.