#4 . List the unknowns Rainsford encounters in the story, and think about how he reacts to each one. What enables him to triumph in the face of the unknown?

he normally uses previous knowledge to traps to stop them.( However it does not always work like when Zaroff dodged his trap.)

by his previous obsatacles he faced in "tight places" he can overcome the unknowns by encountering them by hiding and manifesting again and by making traps and tricks for salvation.