Awwww. Hannah is a good name for a good kitten.
Last year I adopted a kitten from a shelter as a companion to my old boy kitty whose mates had passed away. The original clan had been together for 16 years and their death was devastating for my boy. I really thought he was going to grieve himself to death he was missing them so much.
Mischief, the kitten I adopted, got him out of his funk. When I first brought her home, they hated each other. The only way I could get them to get along was to run the vacuum cleaner. The second the vacuum would start up, they would dash under my bed and hide out. And for about an hour afterwards it was all peace and good cat brother hood. Then they would start back into fighting.
I went to Petco and bought "Good Cat!", an herbal elixir that is supposed to simulate the pheromones a cat produces when it is happy and satisfied. You just add it to their water and it works. Of course, one day I got a good whiff of it as I was pouring it up couldn't believe the alcohol smell. I laugh when think that I might have been spiking the water with some kind of kitty alcohol. The two cats love each other now, thanks to Good Cat!.
Enjoy your kitty and post up some pictures.