Three weeks later...
Felix could be seen lying on Lady Sphinx's operation table while wearing only his boxers. He had to come all the way to the witch empire for the surgery.
Since he intended to stay here for months or more until Lady Sphinx figured out a way to help him obtain runic familiarly, he had informed Selphie about his absence.
"Are you ready?" Lady Sphinx asked as she stood next to Felix while wearing scrubs and gloves, resembling a real surgeon.
She wasn't alone as she had two perfect assistants created out of sand.
"Yes."
Lady Sphinx used a powerful anesthetic drug that was made completely out of materials with medical properties. Otherwise, Felix's poison immunity would act up.
Even with Felix's mental toughness and body tolerance to such drugging effect, he still ended up losing consciousness.
'That's some good stuff you got there.' Carbuncle's eyes lit up, 'Mind sharing it?'