Cron Script to move Books

Hey guys I am trying to get cron to move my books into a book folder automatically but it seems that it doesnt work recursively.

Heres the code

find /mnt/Storage/Torrents/Completed -R -type f  -name "*.epub" -exec mv {} /mnt/Storage/Books \;

 

Thanks!

Find has no -R option, and it always searches recursively.