Weapons from Different Lands (Percy Jackson and Chronicles of Narnia crossover)

Percy Jackson and the rest of the Seven, including Reyna, are transported by Aslan to the magical world of Narnia, where they must help Peter, Edmund, and Lucy defeat Jadis, the White Witch, who has returned.

Will they be able to defeat everything placed in their path, including the rise of an old enemy?

Edit: This story will not be updated until I get inspiration or finish TLDL, whichever comes first.