The five of them looked at the small bottle in their hands curiously. And although they had been told by Livingstone about how magical the small colorless liquid inside could was, they were still doubtful about it. At the end of the day, although they could clearly see that Livingstone was completely healed, they were not present when that happened.
Livingstone could see through their doubts because he was in their position not long ago. He smiled and said, "There's no need for you to give such doubtful gazes. I can tell you that the small liquid inside there is what healed me to the state that I'm in at the moment."
Although they were still doubtful, they decided to trust their comrade and took the solution.