Sméagol was banished and hid under the Misty Mountains, where the Ring extended his lifespan and transformed him over the course of hundreds of years into a twisted, corrupted creature called Gollum.
Sméagol was banished and hid under the Misty Mountains. The Ring extended his lifespan. The Ring transformed him over the course of hundreds of years into a twisted, corrupted creature. This twisted, corrupted creature was called Gollum.