Since Bronze Kitty got promoted from outside car/guardian of the front door to inside cat/guardian of all entrances and exits, there hasn't been an official guard downstairs.
Then an orange and white kitten showed up and started guarding not only my prior house's front door, but also the front door of my building and the building on the other side of my prior house. Bronzy and Stripy agreed to let him have the job (official title is Guardian of the Front Doors), so he was taken to the vet and got "fixed", plus an ear trim. Someone next door even put a box by the door for him to sleep in. A few weeks later, he was looking slight ill and the next day he didn't have the energy to get out of his box. He also had a younger kitten in the box with him suffering the same thing. It turned out to be the dreaded cat plague/cat parvo, the same disease that almost got Stripy Emperor and that ended poor Penguin's chances of recovering from his injuries.
My decision making shifted from picking a name for the new cat to which internal organ will I sell to pay for this. They both spent a couple of months in isolation at the vets. Happily, both survived. The vets sent multiple pics and videos every day. Since the big one was orange, they sometimes referred to him as Mango. The other is mostly white and was occasionally referred to as Pear.
It was touch and go the first week and then a long slow recovery. Sadly, both also have a lung infection that will give them congestion and sneezing any time their immune systems are over-challenged, and there's no cure. So, as much as I'd love to have 2 more balls of fur inside, they are permanent outdoor kitties now. Finally, we brought them back and gave them a new box. I decided we'd just keep Mango and Pear as names (with approval from Stripy Emperor, of course).
And the very good news. They've been happily living outside and spend a lot of time sitting in the box. Both got their final does of cat-parvo vaccine on the weekend. So, they may have cold-like symptoms from time to time, but they won't be able to catch or spread parvo any more.
Now we're waiting for Pear to get a little bigger before he goes to the vet for neutering and an ear trim. Pear was also appointed as Assistant Guardian of the Front Doors.
Since resuming his post, Mango has been given 2 commendations for killing rats. Rumors that he found them already dead and was just carrying the corpses around are just lies spread by one of the dogs in the neighborhood.