Ring Child » by Xx Kiamii xX reviews
Harry didn't expect to go to sleep after the final battle, and wake up to be in the middle of a place called the Shire! Neither did the hobbits expect to see a 3-year-old ISTARI in their midst before their journey. Harry!De-aged and Company!Fatherly.
Crossover - Harry Potter & Lord of the Rings - Rated: K+ - English - Adventure/Family - Chapters: 6 - Words: 19,148 - Reviews: 123 - Updated: 10-17-09 - Published: 10-6-09 - Harry P.

My comment: Istar =/= Potterverse wizard!