Help! Missing Books, Ransom to be Paid

I am missing two of the books from my Narnia Chronicles set. Actually I lent them to someone, but I have forgotten who! So if you know who has them or YOU are the one who has them, please find a way to get them back to me. Please, please, please. The two missing books are The Magician's Nephew and The Horse and His Boy. Should you require "compensation" for returning them, all ransom payments will be coursed through Mayor Alvarez Isnaji of Sulu.