What if Hermione Granger had chosen to use the Timeturner to go back to save Severus Snape's life on the night of the final battle, only to leave him in a coma, too injured to be able to wake up? What then...? ( SS/HP - Harry/Snape - Post TDH - Angst - Snark - Bodyswap - Greased Lightening) Update April 26 - am having a go at finishing this fic off now!