Due to air traffic control, a large number of flights at the airport were delayed. It wasn't until after six in the evening that Xiang Kun was able to board the plane back to Citong.
By this point, nearly twenty hours had passed since he began to feel the urge to drink blood.
Although it was daytime when the urgency to drink blood wasn't intense like at night due to the mania and ferocity it brought, the constant, prolonged suppression was like a buildup of flammable gas, carrying the potential for ignition at any moment.
Previously in Myitkyina, he saw a lot of bloody and violent scenes. If the recently mutated Xiang Kun had been there, he probably would have "exploded".