Perento said it was time to finish off the Indratu Legion because the Balaur were weak after the destruction of the Balaur Guardian Stones. You went to the deepest recess of the Nute Warrens, found the Abyss Gate, discovered the Balaur fortress in the Abyss, and destroyed Brigadier Indratu. When you returned to Perento, he congratulated you on your success and told you to report directly to Governor Fasimedes in Sanctum. After hearing the report, Fasimedes praised you for doing Elysea a great service.