Chapter 504: Fall Harvest!**

Upon hearing Grayson's words, the old man's initial surprise deepened significantly. "With just one look, this young man figured out my condition. His medical skills are pretty advanced for someone so young!" the old man murmured to himself, looking deeply at Grayson, but soon shook his head with a wry smile. "The poison in my body might be tough to get rid of." "Tough to get rid of?" Grayson paused, then took a closer look at the old man. His keen sense of smell detected a strong herbal scent...