When Taden first came to Lystran, he found evidence that the anomalies were caused by a ship. He sent Maelir to find the ship.
Stage 1:
Build a gate stabilizer in Pluma (-1,-3,0) then explore the unknown sectors to the west and find Maelir.
Stage 2:
Scan the derelict Astrela, Tserilecx, and Astralecx core, then contact Maelir.
Stage 3:
Clear the system of Sortis (-2,-3,1) of Toreisan vessels, call the Astrela and Tserilecx to the system, then contact Maelir.
Stage 4:
Stop the Saurum in Raeson (-1,-3,1) from generating the waveform that is distruping the jump system.
Stage 5:
Claim the Astralecx Core, then bring the Astrela and Tserilecx within 200k of the Astralecx Core, target it, and merge the ships. Return to Taden in Avar Nidium (-1,-1,0).