"... Hey You! Do not touch!" 

When the astronauts arrived on planet Pyxl, this stone has attracted many scientists. Stone has amazing properties. By day rune was black as night, but by the evening it glowed. After the light rune reached its climax, stone began to make a huge amount of heat. It can be safely boil water in seconds! Scientists have suggested two theories: 

1) This stone was used civilization planet Pyxl, as an element of life. It could be as a source of energy at home,for example the kitchen stove. 

2) The stone was part of a certain device / mechanism. 

With the onset of dawn rune extinguished, stone cool down, and the process was repeated. 

Let scientists scratching their heads for us! Is not it? =) Meanwhile we enjoy the antiquity and beauty of this runestone...