This is a letter to explain that Alexander has lost his front tooth (you may see the gap for yourself if you must) and has not yet received a visit from you.
Please understand, as I was keeping the tooth for Alex in a safe place so that he might present it to you-- under his pillow-- this very evening. Well, Alex's youngest brothers got into this "safe" place and do I really need to explain more? Perhaps you have baby brothers of your own?
We ask you kindly to receive this letter and this tooth-shaped I.O.U. promising to relinquish the real tooth to you-- without expectation of further payment-- should it ever be found, though we must confess that we do not think it very likely.
Thank You in Advance Kind Fairie,