Prospero and Miranda describe Caliban as a slave,who never yields us kind answer. They call him a slave as he does everything on the island, for example Prospero says ”he does make our fire, fetch in our wood and serves in offices that profit us” this quotation shows that he is a slave as he is doing all the dirty work like fetching wood or making the fire.

Prospero rely’s on Caliban to do the dirty work and slave work as he is described as a demi-devil and a slave, by being described in this way we know as an audience that Caliban has to everything which a normal human shouldn’t and should be treated nastier than the average human as well.

Prospero and Caliban were best friends when Prospero first arrived on the island, however during there friendship Caliban had other ideas and he wanted to hurt Miranda, and he also wanted to make Caliban babies to fill up the island, so Prospero felt betrayed and has not forgiven him. Prospero promises to punish Caliban by giving him cramps at night, stitches that hurt him so much he can barely breath and pinches that feel like a big yellow dangerous bee has stang him a million times.

Caliban claims that the island is his as it was his mothers before and claims that Prospero has tricked Caliban in the past. He was treated well when Prospero first came to the island as it says they were good friends, but Caliban broke this friendship as he wanted to attack Miranda and she cannot bear to look at him, so Prospero’s imprisons him due to this and makes him a slave.