The idea is an alien entity lands on the coast of Australia. It is seemingly a rock. The wildlife around the rock are all unconscious but seemingly still unaffected and alive. The rock isn't radioactive but seems sturdy and solid. My character the anthropologist and sociologist is called in to determine the danger to the civilizations and life of the aborigines in the area to see if they need to be evacuated. She feels a connection on the shore and has no idea why. They start taking samples of the "rock" only to realize that it is starting to move. The area is ordered evacuated and she is drug from the scene screaming no that there is something important.
As the rock starts to move, more rocks land on the continent and soon a full 20 foot rock wall surrounds the coast. The UN considers Australia a lost cause as they do not know what has surrounded the continent but they are determined to find out. In this case, the rocks are pods. The King was the first to land, his advisors, army, and the oracles all landed around the continent. The army and the servants are ordered to create a halo, which will make spying from the air impossible. They start setting up their own land and civilization.
My character has been commissioned and "ordered" by the UN to study what little information they are finding about the "aliens" that have landed on the Earth. The scientists find that the animals were infected with something that turned them into something different. They were passed out, then grew an extra protective barrier over their internal organs. They also became more violent or docile depending on the animal. It is feared this infection could spread to people.
What they don't know yet, is that all the inhabitants of Australia are being put into containment camps and transitioned into a different species. The infection changes the people into a more powerful, longer lived human. However, these humans don't have to eat as often, nor as much. They also don't eat the usual human cuisine. They dine on blood of others. Think of it as a mix between vampire and bug. An internal exoskeleton with human skin. The goal of the King is to create as many of these "transitioned" to create his own army and search after the "Queen" that the oracles foretold would be on earth. This queen would change the transition process and create a hybrid that would transition faster, and be stronger. She would hold sway over the people and cause the final humans to submit into breeding colonies.
The planet is earth is destined to become a way station as several other planets have for the ever growing "breed". they want earth because of the location and the power it COULD have in a few earth decades. As the breed are long living and can withstand a lot.