Mariuk, the Tower Master, was displeased by Wil's impolite way of rejection, but Wil had scored a lot of points with his battles so far. Hence, those ten points of familiarity reduction didn't bring much change.
The Tower Master then went on saying, "Think once again, Player Time Traveler. Lord Poseidon has acknowledged your strength, otherworlder. I offer you more than power—I offer you the oceans themselves. Swear loyalty to Lord Poseidon, and you shall become his apostle, wielding the authority of the seas and storms."
*Ding! You received a quest, "Become the Apostle of Poseidon"
Description: Offer: "Apostle of Poseidon"
Accept: You swear an oath to Poseidon, gaining godlike powers and becoming his Apostle. Decline: Politely decline and receive a different set of rewards as a champion of the sea.
If Accepted, the following rewards and benefits are bestowed:
Apostle of Poseidon: Rewards & Benefits