Muse of Epic Poetry: "This poem would be better with aliens."
Calliope is, actually, pretty normal. She tends to be on the quiet side, as she prefers to let other people dominate the conversation. However, she is not unfriendly, as it's hard to go over four thousand years without developing some social skills. She will go to any extreme to protect people that she cares about. Calliope is pretty nice, and she's even kind of wise. But she has a weakness.
Some people are addicted to drinking. Some people are addicted to gambling.
Calliope is addicted to adventure.
If given a choice, she will follow the path of most resistance. She will always follow the rabbit down the hole. If something exciting is happening in Purgatory, Calliope wants to be at the center of it. Fortunately, Calliope's definition of 'exciting' has gotten lax over the years, as alien invasions are a dime a dozen and there's always some bandit stealing pretty maidens away. However, if anything does capture Calliope's attention, she tends to become quite unlike herself. She will risk everything, just to see the adventure through.
Calliope is the muse of epic poetry, which means that her hobby is to go into the human world and inspire people to write poetry that is really freaking epic.
Most of the time, she runs Calliope's Tavern in Grand City.
If you want to know her full backstory, just go read up on Greek Mythology. It was pretty much like that. Except probably weirder. Because the truth is always weirder.
Recently, Calliope's adventures have consisted of her brief alliance with The Fox. When the angels abandoned Grand City for Heaven, Calliope hung out with The Fox because he seemed to be the only person trying to do something, although she was not sure what. Then she realized that he was, like, evil and stuff, so she turned tail and joined the Bureau instead. Of course, she soon became bored with the Bureau, and she went back to her tavern. The Bureau still sometimes calls on her for detective work, although she hasn't been very helpful recently. However, the new 'soul murders' have piqued her interest...
Calliope has heightened reflexes and strength as the result of being an immortal creature. She also can fight pretty well with a sword. People often critique her for being cliche for using a sword, but her defense has always been, "Hey! Beowulf taught me!"