Percy, Annabeth, Thalia, and Nico are given their most dangerous quest yet. A quest that requires great courage, bravery, and wisdom. A quest that will decide the fate of all demigods for the rest of history. They must...go to school? Oh, but this isn't a regular school. This is a school of magical beings. This is a school of wonders the demigods could only dream of. This is a school...of witchcraft and wizardry. The demigods are going to Hogwarts.

=An Artemis Fowl-Percy Jackson(World) crossover= A year after the events at Berserker's Gate, Ex-criminal and teen genius Artemis Fowl was greeted with opportunity to innovate and monopolize the refreshed market; but in order to do so he would need resources-ones that the current status quo isn't enough to supply (let alone be available). Naturally, he turned to other methods...and went full-on interdimensional travel! Now, stranded in an alternate Earth where gods and monsters roam the land and are unseen by mortal eyes, Artemis and his friends must find a way home while dealing with a whole new level of weird; prophecies and magic, the People out for gore, a chunk of mythology here and there, and a twisted revenge story to score! Artemis may once again be at his wit's end, but one which would lead him to challenge the very ancient shackles that bound his human blood...