The Nightshadow Alliance

Percy Jackson returned to camp the summer after the giant war. The Giant War had certainly taken a toll on both camps, but for the time being, everything was well.
But he forgot the first rule of Percy Jackson: Never tempt the fates. In the midst of crisis, the newest great prophecy is declared, and Percy clearly just has the worst luck ever. So much for a relaxing summer at camp. He really needed to talk to the fates once he was done.
Before Trials of Apollo.

A big thanks to @MarsMUltor for the idea and for editing the story!