In the near future, maybe 2020, a brother and sister are in the basement, playing with their new toys-- four inch tall remote control androids with cameras in their heads that send information back to VR glasses. Cameras attached to the glasses sense their movements and move the limbs of the robots accordingly.
When criminals break into the house and take their parents and baby brother hostage, they need to send the androids for help, while avoiding being caught themselves. And when help is slow to arrive, they decide the only hope is to take rescue into their own hands.
An extended family has a tradition that they are the direct lineal descendants of Arthur. The older family members take it all very seriously-- the story starts off with a coronation after a funeral. They have divided up the state they live in into territories, and each is responsible for the territory that family member lives in, to serve and protect them, especially from supernatural evil, but also with emergency service, crime prevention and so forth.
One young man doubts that there is anything to the stories and the magic that family members claim to have performed. When he is sent on a quest prior to being knighted, he has to decide what world he is going to live in.
This has a lot in common with another much older story idea that Karen and I worked on. In that story, some medieval reenactors build a kind of utopian community with a castle. When civilization collapses due to some kind of advanced bio/nano weapon, their community is one of the few to survive intact and capable of sustaining themselves.
The Magical Toy Store
This is the story that the description (an earlier post) came from. A child and his parents visit the toy store, and he brings home a gift, apparently for free. When he is older and has children of his own, he decides to find out how the store came about and how it can just give away such expensive, handcrafted toys.