This is the Nobel Story of "The Mystery weapon of The Power Source". It is the part-5 of This story . After "The Misthana -A Black Strom" finds the mysterious weapon.

Now in this story After  "The Misthana -A Black Strom"  gets the  mysterious weapon then  After that "Diyansa", the king of the gods, attacks The Misthana's  planet to save the weapon. But here too, a mystery was hidden which "The Misthana -A Black Strom" , the king of evil, and "Diyansa"   , the king of gods, did not know.