Disclaimer: Don't own Shadow of the Colossus
The nightmare begins when the first beam of light soars up into the sky. Its heart drops as it realises what is coming: a visitor, a monster.
It takes another day for another to appear. It wishes that this intruder will be slain by one of the others. Yet each day continues to pass, and each one brings with it another beam of light, until there are fifteen pure columns.
On the sixteenth day, the door to its dominion opened.
On the sixteenth day, the visitor arrived.
On the sixteenth day, the final fight began: for death or for loneliness.