I will do what I can.  I might…attempt…to summon one of them, sometime.  I’m not sure, and I’d definitely want a lot of time to prepare a place away from the main colony.  But I’m not sure.

[As for the rest…]

We don’t have a concrete reason for that, no.  Other than to appease the elementals.  That’s generally enough of a reason, and it is the foundation of most religion.  To appease and curry favor with beings like those five.  Why they want blood sacrifices I don’t know, but we do know that is what they desire now.