Zaroff's speech foreshadows that Rainsford will become the prey in the hunt, revealing the sinister nature of the game on the island.
The chilling surprise that Zaroff's speech foreshadows is that Rainsford will be the prey in the upcoming hunt. This is a pivotal moment in Richard Connell's short story 'The Most Dangerous Game' where the true nature of General Zaroff's hunting practices is revealed to Rainsford, and to the audience. The unsettling undertone of Zaroff's invitation to the hunt hints at a sinister twist that departs from the initial expectations of a traditional game hunting expedition.
Zaroff's speech foreshadows that when Rainsford and Zaroff hunt, Rainsford will be the prey. This is indicated by Zaroff's reference to Rainsford feeling like a new man after a good night's sleep and their plan to hunt the next day. Zaroff's mention of a 'promising prospect' suggests that he sees Rainsford as the potential prey for their hunt.