The youth somewhat frowned at the riddle, because to him, it didn't quite make sense.  He folded his arms, then pressed his hand to his chin.<br/><br/>"That is a rather strange thing," he added slowly.   "The locks are the key to finding them.  Huh.  You'd believe that we'd be speaking of a lock that a key goes into, but that doesn't necessarily seem to be the case. A lock could mean a number of things...  a tuft of hair or a waterway.  If it's hair, then maybe all the kids have the same color hair.  If it's a waterway, well..."  Sera hesitated, because he always seemed to overthink these things.