1 year after this meeting that occurred exactly on the day that Kayden fell into the abyss, the land was invaded by surprise by a race similar to Orcs from medieval adventure games.
This race was extremely brutal, with mass massacres without the slightest shame. Several kingdoms were attacked at the same time, and whenever the kings intervened, an orc on the same level appeared. Slowly this became a real war, and the first human alliance was founded. Chaos prevailed on all weak sides.
Those with a certain power and protection wouldn't care in the slightest about a few villages being decimated, and that was indeed what happened, at least until one of the survivors reported what was happening.