A Canavar attacked and destroyed the depot and processing facilities on Slost.
From the Books: "'Entropy,' Ashattoo spluttered as they flew over the remnants of Wathayat’s Slost depot. Weeks ago it was a massive gas transfer, purification, and storage facility. Now it looked like a giant had rampaged through it with a rake the size of a mountain, tearing the base from the surface of the planet and leaving miles-long flaming rents behind." - Cartwright's Cavaliers, p. 79.