I like water!
The Sentinel position is of great responsibility, for upon you depends the security of the Grotto. You are to receive the outside password form all Prophets who enter the Grotto and are to see that each one who enters has his membership card for the current year. Visiting Prophets, who may be unknown to you, should be reported to the Master of Ceremonies, and admitted only when avouched by him. Guard well the outer borders of our Realm.