Poseidon's daughter
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Thalassa Jackson has known for years that she is a demigod, she is the twin sister of Percy Jackson. What happens when weird stuff happens to Percy and Thalassa and Grover brings them to camp halfblood and their mother gets taken by Hades. When they get to the camp they find out Zeus's master lightning bolt is missing and that they are blamed of the theft. They begin their journey to find the missing symbol of power and get their mother back from the underworld.
Disclaimer : I do not own Percy Jackson series or its characters, i only own my oc Thalassa Jackson. The plot belongs to Rick Riordan but i will change the plot a bit.
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