That was a GREAT story but what happened to the end? It was less of a 'Novella' and more of a 'Novel with the end rudely chopped off.'
I loved the portrayal of Seven, and his new companion Cat was much too easy to fall in love with. She reminds me of a female version of Fitz Kreiner (whom the Doctor hasn't met yet at this point, so I'm sure the similarity is coincidental). I wish there were more stories with her.
The plot kept me on the edge of my seat and the bits of philosophizing and Catholicism were handled well.
If you love the Doctor, read it!