God bless the internet! I now know that this is Hardy Boys/Nancy Drew (which I had sussed out on my own) and the enemy of Sherlock Holmes.
And I have to say, I appreciate the mash-up very much because of that.
I also agree with Ronnie – you must sequel so we know how the Handy boys get Annie Drew out of this situation. (Changed the names for Community Standards reasons.)
Ronnie
Alexa Reed (LoA)