"The Mystery of the Three" Is a Story about Three Criminals

Maud and Robert flung their bags next to Jeffery's on the dock and climbed into the small submarine, moving quickly so they would not be caught. [Participle] Using the cover of the night to remain stealthy, Robert expertly screwed down the hatch of the sub, taking great care that it would not squeak. His breathing increased and got deeper, he was panicking. Just like most criminals, he regretted being part of this plot, as he was not only risking the rest of his life behind bars, but his life itself. Trying to calm his nerves, he stumbled down from the steps of the hatch. …