Invaders? I haven't heard the Brions telling us to stay out or if they told us, I certainly don't remember them telling us recently. I do remember Melabrion saying that his keep wasn't ready for visitors and he closed the doors. So certainly, they are able to keep unwanted people out when they so desire and I presume they can do so again.

You mistake me. I do not mean to say that Tenebrion has created ALL of the undine in the lands, or likewise that Umbrion has created ALL of the Lava Walkers that can be found in our isles-- only those within their Keep. And yei, the 'Brions have stated before that the creatures within their keeps are of their own creation.

Well, that doesn't necessarily mean the Brions created them from raw materials. It could mean they got the beasts from their natural habitat and simply bred them. In that case the creatures would be of their own creation in a way so why they are just left to roam around their keep is beyond my understanding at this point. If the Brions wanted to keep their creations safe and unharmed, maybe they should be kept in pens or zoo-like areas. As it is now, you have Mud Goems walking on fine carpets in Melabrion's Keep while the Undine make a mess of Tenebrion's Keep.

Actually, this is pretty perfect for the Brions. The Brions invite the exiles into their keeps, have powerful creatures there which the exiles kill so they can explore while others come back to kill for the experience so the Brions can say they are the persecuted ones because their homes are invaded and creations destroyed by the unthinking exile population. I should have thought of it myself.