I’m trying to find a story based in the Whateley Universe in which a teenage boy is exposed to nannites while on a school field trip to a top secret lab, and then while playing an RPG on his computer he runs into Fay’s alter ego and is killed while trying to save her in the game. The nannites are somehow activated, mutating him into his role playing character, a female elf, who also happens to have an affinity for electronic devices, as well as retaining her stealth abilities from the RPG, and some pretty well enhanced combat abilities from the nannites as well.

Fay and her father are called in, and the new young lady and her mother end up in Washington DC where she gets involved with the CIA trying to kill her.

Does anyone recognize the story?