Allow me to do my moniker justice and prove perfectly mercantile. You... exotic arrivals are often summoned on account of your... unusual skills. You are then hunted by the dead, and you are either converted or perverted as weapons. You represent a constant and looming risk of being turned against us.

( Candidly, practically, thoroughly: ) If you are killed — as was our initial instinct — you are regrettably still often recruited by the brotherhood of the dead. Therefore, our only option to survive your presence is to banish you back to your homelands. Make no mistake: your safe and prompt return to your worlds is entirely beneficial to our survival.

And if at any point we should discover more efficient methods to annihilate the danger you pose to us, they will be utilised.