Pjo/avengers crossover

"No. No. Nononono. It couldn't be true. But it was. Percy dropped his sword and fell to his knees. Silent tears fell as he stared at the carnage in front of him. His mom and Paul were dead. And Tartarus was their killer."
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This is my first story on Wattpad. Probably gonna be very bad, and VERY slow updates. I'm talking like weeks or months here. The story is an Percy Jackson/avengers crossover story, may include Loki. No ships for now except Peppertony (is that their real ship name?) solangelo, and other basic chb ships. No percabeth, or any of the 7's ships, unless I bring Leo back eventually. Possible Hawksilver, clintasha, and definite WandaVison. After Ultron, Pietro is alive. Whenever I write something that goes against something in the MCU couple-wise (like clintasha cause Clint's married) assume what goes against it isn't true in this story (Clint isn't married to Laura.) The AI will be FRIDAY. Bucky will probably come eventually. Also my best friend (she doesn't have a Wattpad account) made me the cover. She used photos I sent her that I found on safari. I don't know who made them but my friend put them together.
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They won the war, but at a cost. Everyone in the 7 died, except Percy. The gods grant Percy one wish, and he wishes to be left alone by all the gods until he is ready to return to the Greek world. Demigods may still contact him though, and monsters can still track his sent. What happens when Percy returns home only to find Sally and Paul dead? What if Tony Stark turns out to be his uncle? How will Percy deal with monsters, Avengers, nightmares that affect his physical body, and flashbacks?