Hello my dear (Name)!
I bet you think I forgot to visit you.
I was flying over (Australia/choose location) two nights ago and started having problems with one of my wings. You see, my wings get tired sometimes because I fly around the whole world every night.
I rested on a big fluffy cloud until my wings started feeling better, but by that time it was almost morning. I had to fly back to my Tooth Fairy castle.
To make up for missing you the day you lost your tooth, your house was my first stop last night. I hope you enjoy the little treasure I left under your pillow.
The Tooth Fairy