The Most Dangerous game sequel?

For a school project I have to write a sequel to the most dangerous game, a short story. It has to be at least 2 pages. I have come up with an idea, and would like to know what you think of it. Zaroff won the fight at the end but didn't feed Rainsford to the dogs because he wanted another shot at him, so he tries to hunt him again with the other Spanish prisoners (its mentioned that Zaroff had them in the story). When Zaroff releases the prisoners out unto the island they all spread out into groups. Zaroff hunts everyone of them down until there are only Rainsford and one Spaniard left. Rainsford sneaks up behind Zaroff and pulls out a spare pistol that he carried around in his holster and Zaroff notices so he points his gun at Rainsford and they shoot each other, both dead. The Spaniard finds the boat and escapes.