ISBN 9781568824048 books & textbook
The Two-Headed Serpent (Call of Cthulhu Rolpelaying)
Chaosium Inc Paul Fricker Scott Dorward Matt Sanderson Mike Mason Mike Mason
Chaosium Inc. /2017-06-01 Hardcover / 272 Pages
isbn-10: 1568824041 / isbn-13: 9781568824048
