"MysteryIssue" revolves around the characters Maria, Alex, and Mark. The story likely centers on a suspenseful or intriguing situation involving these characters, where they are entangled in a mystery that needs to be solved. Given the title, the plot might involve unraveling hidden secrets, unexpected twists, or unresolved conflicts between the characters, creating a captivating narrative for the readers. Each character likely plays a crucial role in piecing together the puzzle, with their personalities and decisions driving the story forward.