Beautifully done. Admittedly this is a big team so it will be hard to fairly compare it to a solodev effort, but you've all done an amazing job with this.
I knew who it was from the beginning, maybe that was too obvious, but *proving* it was the hook. if there's one complaint it would be the forming of the questions - this was actually really awkward because you can't see what the next word is going to be so there's a lot of forming silly questions just to see what the options are at each stage and then go back and form real questions afterwards :)
are there more of these? the story infers there are.. if not, there should be.