Fek'lhr (pronounced Fek-Lar) is the mythological guardian of Gre'thor and the most powerful fiend among the Fek'Ihri Horde. Fek'lhr is a terrifying beast-like Klingon, and three times as tall as a common humanoid.
- “Leap of Faith”: After finding Chancellor L'Rell's soul in Gre'thor, the player, accompanied by Martok and J'Ula challenged Fek'lhr to prove their worth. Before J'Ula could finish her offer, Gowron offers his soul in exchange for L'Rell whom which Fek'lhr accepts, but eventually agrees to J'Ula's new offer of Aakar's and J'mpok's souls for Gowron's freedom. The team escapes Gre'thor punching through every single soul coming after them as ordered by Fek'lhr.
Missions formerly involved
- “The Gates of Gre'thor”: Previously thought only to be Klingon superstition, Fek'lhr is now made flesh, though Kahless suspects he may be created by scientific means. Fek'lhr awaits the player in his lair and is the final boss of the Fek'Ihri story arc. (This mission was folded into "Afterlife")
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- The player's Bridge Officer, scanning Fek'lhr's remains, finds an unusual resonance signature. These readings match signatures recorded at archaeological sites containing Hur'q technology.