L and Percy Jackson's gods

L is the world's most genius detective. He isn't as famous as Sherlock Holmes but definitely smarter. He never shows his face. Never reveals his name. Never tells his secrets. He solved the Kira case and now he was bored out of his mind. He flies to USA in hope, that there would be something interesting. Along with Watari, he leaves Japan and heads over to the New York City. He isn't expecting he would meet as interesting person as... Percy Jackson.