A Trombe wall (Trombe rhymes with prom, by the way) is a wall that warms trapped air, and then circulates it to help heat a house. Trombe walls are ideally made out of a material with a fairly high thermal mass materials (like bricks or concrete), and are often painted black to improve heat conduction
A chase of cheetahs and lions and how they hunt the same prey and have to compete to get it first.
Maybe to help gain knowledge about what's out there so our poor little earth doesn't get the official knock out. Or help prevent it they are earth rescuers!! :) help this helps! Stay groovy.