The Tempest

The storm (i.e. tempest) in question takes place off a remote, desolate, and magical island upon which lives the usurped and exiled Duke of Milan, Prospero, and his daughter, Miranda. The reader realizes that the storm's timing is too great a coincidence when it's revealed that among those on a ship caught in the tempest is Antonio, the usurping Duke of Milan. The learned Prospero has developed some magic abilities and gained control over some of the island's airy spirits -- most notably Ariel -- as well as the deformed monster / slave named Caliban. Caliban was the son of a witch who was previously in charge of the island, Sycorax. Under Sycorax's rule, Ariel and the other spirits were imprisoned, so Ariel and the others are now in indentured servitude to Prospero.