Following the completion of the seven Harry Potter books and eight films, J.K. Rowling has something new to announce. Even though this is not a new book, we have been informed it is something equally exciting.

As a teaser before the official announcement, ten letters have been hidden on the website below for you to find. To locate them you need to find ten sets of coordinates, enter them into the search box one set at a time, and take a look around.

This is the eighth coordinate: 51.781383,-2.56844

The rest will be revealed among nine other Harry Potter fan sites at intervals throughout the 15th and 16th of June 2011. Find the coordinates, enter them on the site below and you could be one of the first to piece the word together.

(Please note - These letters are magic, therefore do not exist in the real world…)

Good luck to you all.

Secret Street View

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UPDATE: Below are coordinates that have already been revealed (we will update as more are released):

Leaky Cauldron: 42.523356,-70.890698
Mugglenet: 51.530377,-0.123259
Harry Potter Xperts: -34.410362,150.900671

UDPATE #2: Five more coordinates have been revealed:

Portkey: 43.640408,-79.388795
UniversHarryPotter: 29.952313,-90.067849
ClubdoSlogue: -23.547149-46.520266
HPANA: -29.239004,24.507602
BlogHogwarts: 34.730748,137.383786

UPDATE #3: Nine letters have been revealed so far. Clue No. 10 has yet to come ...