"Not enough to completely fill four warehouses, I don't think," Layla says. "Not with the activity we've seen at the holding facilities - I don't doubt they bring in a lot more people than the rebels rescue, but to need all that space just for offworld artifacts, they'd need to step up operations by a couple orders of magnitude."

She falls easily into step with him as they head back towards the command centre, expression still thoughtful.

"I think what they keep depends a bit on their ultimate plans. Equipment would be key if they're just looking at winning the war here, but if they want to start infiltrating our worlds instead of just bringing us here, mundane objects will come in handy. You can get a lot of information if you can pass as a local."