This story is somewhat of a tribute to Agatha Christie's novel, "And Then There Were None." There are some differences though:
Nobody is going to die (at least not anybody important). They'll just be hurt.
It's going to be more modern, of course (her novel was published in 1939) and the Voice will talk more than once. They aren't being accused of murder by it though, it will taunt them.
It's at NCIS, not in a house on some mysterious island off the coast of Devon ;)
There won't be disappearing Indian boy figurines. There will be ten of something else that will disappear one by one.
They will be locked up so they can't wander around and look for their missing comrades
One of the ten will not be the mastermind. It will be some outside person because that would be difficult to write. (Oh yeah guys, you see, everyone's dead now and it was Abby all along. Guess someone should have listened when she said she could kill them and leave no forensic evidence, huh? No. Not gonna happen.)
And that's about it. Kind of big differences but you don't really want me to kill them all off, do you? And what if I had decided to make sweet old Ducky the mastermind behind the deaths? That wouldn't really work, would it? Just a warning, there will be Tiva and McAbby but not too much more than you see on the show because they will be separated at some point, you know. Okay, well if you are interested now and would like to read this just click on the little "next" button down there. Oh! And enjoy. ;)