ISBN-13: 9780956143594 / Angielski / Miękka / 2012 / 213 str.
Felix O'Neill and his friend Dr. Garzon investigate the secret sciences of the shapeshifter, the berserker and the werewolf. Here the master detective tries to solve a mystery in a remote swampland where a cunning murderer has terrorized the simple folk of the old waterways, jungles and fens.