His life had been a mockery to itself, as too his death it seemed. For what kind of twisted humour would force Severus Snape to relive his greatest regret? To return him to the point in his life when the only person that ever mattered in his life had already turned away.

He died with the bitterest of regrets, hated, alone and unthanked. Harry hoped to give the man some measure of peace, by granting him a chance he never had in life.