Being of humble origins is not a disgrace; it's the ability to be flexible that makes a man.
Leon didn't dwell on it for too long and soon decided to turn back to search for the Kobolds.
This isn't about eating the humble pie; this is about giving the Kobolds a chance.
Leon had an excellent memory and easily found his way back, landing near his former nest.
Next, he planned to encounter the Kobolds on his way home and, seeing their "devotion," benevolently offer them a chance.
Unless another Dragon appeared, it was unlikely that the Kobolds would move allegiance, but Dragons are rare—being nearly perfect creatures, Dragons are certainly capable of reproduction, but that doesn't mean they are willing to, just as many of the middle class do not desire children—so the chances were slim.
With this in mind, Leon was very confident about his journey, only to find not a single trace of a Kobold upon arrival.
Where have all the Kobolds gone? How come they have vanished completely?