Ancient Echoes is an Ars Magica Campaign set in the Theban tribunal. As in standard campaigns the players will create a Magus character, a Companion and two or three Grog characters. The players magi are newly Gauntleted Wizards who have been invited to join the House of Wolves a relatively new covenant founded upon the Island of Thera.
After that, take a look at your wiki. There is some more helpful info there.