Shinyaku Toaru Majutsu no Index Light Novel Volume 10

Shinyaku Toaru Majutsu Light Novel Volume 10 is the 10th novel in the Shinyaku Toaru Majutsu no Index series, to be released on May 10, 2014. It details the efforts of Kamijou Touma to protect Othinus at the cost of becoming the enemy of the world.

Publisher's Summary
Kamijou Touma has made an enemy of the entire world to save Magic God Othinus.

His previously reliable allies, the highly influential people, the espers, the magicians, and everyone else now attack him as "powerful enemies". This battle has the lowest odds of survival and seems the most hopeless of any other in his life. In other words, the world Kamijou has returned to is the same as "that hell".

But he does not give in. He is not alone this time. There is a way to save Othinus from the world. Namely, to neutralize her powers. To return her to human, he must retrieve the eye of the magic god from Mímir's Well which is in an old castle in Denmark.

Now he has a set objective. Kamijou fights to protect the life and smile of a single girl.