Line of Duty

"It's the worst case of acute renal failure I've ever seen," Eagle told Raven. "Whatever hit him pretty much fried both of his kidneys, suddenly and completely."
"It was magic that did it, so I need to know if you can reverse it."
The healer shrugged.
"I have nothing that would regrow an entire organ - and I'm afraid it's gone so far even dialysis won't fix it."
"You're not letting my nephew die," the agent growled.
"His only chance would be a transplant. If there is a donor match."
"Try me," Lion's voice suddenly chimed in.
"Me first," Raven frowned.