Here are the chapter by chapter cliffhanger endings to:

 
 Cast of Characters
 
 
Chapter 1:  The Masked Crusader
 
Chapter 2:  Death Takes the Helm
 
Chapter 3:  Drive to Doom
 
Chapter 4:  Suspense at Midnight 
 
Chapter 5: Murder Meter; 
 
Chapter 6:  Exit to Eternity
 
Chapter 7: Doorway to Destruction
 
Chapter 8: Destined to Die  
 
Chapter 9:Danger Express  
 
Chapter 10:Suicide Sacrifice  
 
Chapter 11:The Fatal Mistake  
 
Chapter 12: The Man Behind the Mask