David was now alone, but his expression wasn't looking too good at the moment. While there might be possibility that the King was lying, but why would he lie to him.
There was no way to be sure, but it was still in the distant future. David shook his head, he wasn't going to think about it and discourage himself. He would go strong and when he reach Demigod's realm, he will seek the Wolf King and kill him.
But first, he needs to survive the poison spreading in his body. He could have asked the king for help, or the guard. But David has his own pride and while he might save his life, saving face seem to matter more to him.