From the frontpage of the module:
His capital city retaken, Duke Labahlah extends his healing embrace over more of westeren Tenh, but peril awaits at every border. The young ruler needs staunch friends friends to fight old enemies and win new allies. Turn your face toward the chill winds blowing from the Griff Mountains and pierce the mysteries of the lost lake. Part 2 of the "Legacy of Life" series. A two-round Core adventure set in and around the Duchy of Tenh for characters level 6 - 15 (APLs 8 - 16). Note: Additional TU expenditures are possible.