Being immortal has its perks, undeniably, but it also has its downsides. Particularly, seeing all your friends slowly age and then die, while you remain unaffected by time. But Twilight is a smart and resourceful pony, and she can always make new friends. And she has no intention of letting pesky things like the law, common sense or morals get in the way. She'll just need a convincing excuse for why the corpses went missing from their graves.