The Broken Covenant of Calebais
Subtitle: An Adventure Supplement for Ars Magica (Revised Edition)
Publisher: Atlas Games
Published: November 10, 2004
Format: Paperback
Number of pages: 96
ISBN-13: 9781589780712
First sentence: The story begins when the characters are visited by a Redcap, one of the messengers of the Order of Hermes, who bears a letter for the magi.