Complex sentence: They have come upon a castle that has been abandonded for 120 years, and which is rumored to contain the Cosmic Forge, a pen said to control the destiny of time and space; whatever is written with the pen becomes instantly true.
Split into simpler sentences: They have come upon a castle that has been abandonded for over a hundred years, and which is rumored to contain the Cosmic Forge, a pen said to control the destiny of time and space. It is said that whatever is written with the pen becomes instantly true.