00706cam a2200205 4500 378856880 TxAuBib 20170402120000.0 150924s2015||||||||||||||||||||||||eng|u 50050 Project Gutenberg PGUSA eng TxAuBib Westerman, Percy F., (Percy Francis.) The Sea-girt Fortress [Gutenberg] : A Story of Heligoland / Percy F. Westerman. Project Gutenberg, 2015. Public domain in the USA. Text. Helgoland (Germany) -- Juvenile fiction. War stories. World War, 1914-1918 -- Naval operations -- Juvenile fiction. http://www.gutenberg.org/ebooks/50050