Episode "20" - Part B - Lemuria Rising

Entering the lower chambers of the underwater shrine, our Fearless Franchisees arrive at a nexus of primal power, the site where the ley lines converge, and where, with Selina's help, a Dragonborn Celestial is trapped within the confines of a Magic Circle.  But treachery abounds, as Minister Sauriv is revealed to be a powerful agent of the Shadows, summoning through a dark rift, terrifying new allies - the Shadar Kai!  Does this (gasp!) mean a Total Party Kill? Is this our LAST episode of the G-team?