While reading about intrusive gaming I came across Planetarium, which looks quite intriguing.
A girl with complete foresight but no recollection of the past receives a love-letter from beyond the end of her future. Guided by her friend the mathemagician, she begins a journey through the events which his calculations have predicted and her intuition has foreseen, towards the source of the curious letter.Each instalment contains three puzzles -- usually one riddle, one number problem and one tricky puzzle -- whose answers themselves form an overall puzzle, which can only be solved when the whole of Planetarium has been completed.
I plan to check it out. This is the exact sort of game/story I'd love to write.
Whatever happened to your children's story. Maybe you should serialize it on the blog, then pull it off and sell it to the unhappy folks who don't know the ending.
I've got another writing project I'll be picking up again once I finish my PhD, don't worry!