Hardcover
Published Feb. 1, 2013 by Oetinger Friedrich GmbH.
Gregor und der Schlüssel zur Macht
In his second adventure, eleven-year-old Gregor returns to the world beneath New York City to rescue his kidnapped sister, Boots, and fulfill a prophecy that will restore peace to the people, bats, rats, cockroaches, and spiders who populate the underworld.
