Eternal durability

  "How can they be killed?" Kendra asked. "You said the Eternals are nearly immortal. "

  "They don't age, they don't get sick, and they don't die easily," Patton said. "From what I understand, they are somehow connected to the magic of the artifacts, especially the Sands of Sanctity and the Font of Immortality. To slay them would require dragon breath, phoenix fire, a mortal wound from a unicorn horn, or some weapon of similar potency. "

Chapter 7