The Murdered Princess and the Innocent Traitor - Chapter 36

The father is a total coward.. The solution was there in front of him. Why he stopped and betrayed Atrius father? He got insane and desperate. He could have Atleast try that invention. He is so stupid.
Poor ML, because of insane emperor, his family was wiped out. So I thought it was the eldest sister. Tsk. Maybe the sudden death of the emperor was pinned down on his parents. How did the Empress died too?