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Five years after the assassination attempt, the Emperor showed almost no ill effects, despite the death of nearly forty percent of his brain. Healing Hand and Spying Eagle pioneered a tissue regeneration process that earned them accolades from psychological Wizards across the continent. Fetal neurons stop dividing in the womb six months after conception. Neural damage to an adult is nearly always permanent. Healing Hand located the chromosome that controls neural mitosis. Splicing the proper peptide into a single neuron, the Wizards were able to grow four billion new neurons to replace the dead ones on the right side of Flying Arrow's cerebral cortex.
Live neurons don't a functioning brain make, however. Connecting the neural tissue into assemblies that would allow the body and mind to
