Chapter 541 Her Luck Is Not Bad

• "What is this?"
• Caitlin Clarke was a bit confused.
• The doctor hesitated for a moment and said in a low voice, "This is a stamina-enhancing drug that I developed. Once a person takes it, their stamina will last for a long time before it depletes. However, this drug is not perfect and has some drawbacks that I haven't figured out yet. I know that your stamina is running low and it's impossible for you to escape from here. But if you take this drug, you can ensure that you have enough time to get out of here, right?"