Grunan starts chanting, a bubble surrounds fluffy... his wound reopens, and then...
Then strange things happen, he lives out the last 6 years in reverse increasingly fast...
Abruptly, Grunan stops, and Fluffy's reverse life slows, and eventually, the bubble dissipates.
"Fluffy. I need to know. What is today's date..."
((Up to you if the spell worked perfectly, or went back an extra few months/years more than it should have))