By Sean Williams et Garth Nix. Bayard jeunesse 2015 . 1 vol. (283 p.) 20 cm. 9782747051187

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=35239 ISBN 9782265093010 http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=42703

By Sean Williams. Fleuve Noir 2011 . 384 pages 9782265093010

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=42703 ISBN 2265088463 | 9782265088467 http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=43975

By Sean Williams. Fleuve noir 2009 . 1 vol. (381 p.) 18 cm. 2265088463 | 9782265088467

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=43975 ISBN 9782265092990 http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=57449

By Sean Williams. Fleuve noir 2011 . 1 vol. (538 p.) 18 cm. 9782265092990

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=57449