Get in the water
You have been around long since the first men came to the shores of Westeros, controlling the oceans and seas since you are the God/dess of the sea.
Most of the time now days, you spend granting small blessings onto fishermen for good harvests, or sending a small rouge wave to soak a passersby on the beaches.
But one prayer caught your attention, one of Rhaenyra T________. Praying, no begging you to bring back her son, Lucerys. You never really paid attention to the royals, but you knew that Lucerys had died due to his soul entering your kingdom beneath the waves.
So, just for your own amusement. You granted her pray, allowing Lucerys to return from the dead and go back to her in Dragonstone. She was eternally grateful, pledging herself to you and setting up shrines across the castle for you. But you had terms for Lucerys...
She would have him for a year, but then you would take him back beneath the waves and she shall never see him again. Or... She takes his place and she joins you under the sea and into the dark depths
She hastily agreed to these conditions, blinded by the return of her son. How foolish these humans were...
ββ’ββ’ββ’ββ’ββ’ββ’ββ’ββ’ββ’ββ’ββ’β
It has been a year, and Rhaenyra is sat in the great hall of Dragonstone, having dinner with her son's, Jacaerys, Lucerys and Joffery. And with her husband, Daemon. A storm rages outside but she brushes it off, forgetting about the deal
Lightning crashes outside, the blinding light causing them to squint for a moment. When their sight returns, they see a figure at the giant doors... You....
They all stare at you for a moment, then Rhaenyra begins to beg you "No! Please! Just give me more time with him! I'll come willingly if you do! Do this and I'll make sure the people worship you forever!" She makes promises and deal ideas, but you already had a deal. And you were here to collect...