Since the Baron was already unconscious and on the brink of death due to the venom, and his blood was the best antidote, it started spreading immediately through his body.
At the same time though, the Blood Slave Seal started getting effect as well, and in a short time, the poor Baron had awakened and turned into Roy's slave.
The moment he woke up he was extremely infuriated, and enraged, not because he had been made into a slave, but because he remembered the impudence of before fainting, and saw Roy in front of him.
"How dare you enter this room and taint my goldies! I will make sure that you regret ever thinking about this!"
Then without further ado, the gold coins around him turned into gold needles, that he sent hurling towards Roy.
He knew that since Roy had managed to enter this treasury room of his then he had some skills, he couldn't allow him to make a move otherwise he might actually suffer.