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Necropolis (The Gatekeepers) (original 2008; edition 2009)
Necropolis by Anthony Horowitz (2008)
References to this work on external resources.
Wikipedia in English
Amazon.com Product Description (ISBN 0439680034, Hardcover)
The stakes get higher in #1 NYT bestselling author Anthony Horowitz's latest masterpiece.
As the fourth novel in the spellbinding Gatekeepers series begins, the world is under the greatest threat it's ever known. The evil corporation Nightrise has amassed an immense amount of power . . . and the devastating force of the Old Ones is about to be unleashed around the globe. To stop this from happening, Matt and three of the Gatekeepers head to Hong Kong--not just the modern city of skyscrapers and wealth, but the secretive underworld beneath. In Hong Kong they will meet the final Gatekeeper, a girl named Scarlet, whose fate is inextricably joined to their own....
(retrieved from Amazon Sun, 06 Jan 2013 10:29:01 -0500)
To stop the evil corporation Nightrise from unleashing its devastating power around the globe, fifteen-year-old Matt and three other Gatekeepers travel to Hong Kong to find Scarlet, the final Gatekeeper, whose fate is inextricably joined to their own.
(summary from another edition)
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