Complex sentence: It is schemed by Richelieu to kill the king's musketeers at an early stage though he survives the war while the three musketeers leaves the battlefield and Milady goes to England to assasinate the Duke of Buckingham who is killed by a scorpion at last.
Split into simpler sentences: It is schemed by Richelieu to kill the king's musketeers at an early stage though he survives the war while the three musketeers leaves the battlefield. And Milady goes to England to assasinate the Duke of Buckingham who is killed by a scorpion at last.