The 5th of Kevin calling to his kin
The 5th of Kevin is the founder of the Brotherhood of Grunt, and constructor of the monastery. He was born from the warts of the Primus Gruntus Maximus like all his kin after the Primus evolved from his ancestors, but unlike his brethren, he managed to stay ontop and grow to maturity on the back of the Primus Gruntus Maximus.
He later built the Monastery to house the Primus Gruntus and began howling to call his kin to the monastery every night until they all came to their new and first real home.
He recorded the prophesy of the Chosen One in his Pamphlet (called "The Pamphlet of Kevin").