When the Seven (including Nico and Reyna) decide to take a break from a normal demigods life for a little while, they didn't know that this would have happened. Annabeth of course decided that Central City would be the best place for a vacation. Why? Because its the home of the scarlet speedster, The Flash. This takes place after season 3, episode 5 (so right before the crossover event). This will contribute to the story line of my other stories, so if you see how the Seven and team Flash know each other in different stories, that's why.
4 parts