Overlord Volume 13

The Paladin of the Holy Kingdom is the thirteen light novel volume in the Overlord series. It will be released on April 27, 2018. It details about Ainz Ooal Gown's death when he faces against the Demon Emperor Jaldabaoth and his Demon Maids while as the Liberation Army struggle against the allied army of demi-humans that surrounded them.

Main Summary
Ainz Ooal Gown dies. The Roble Holy Kingdom is surrounded by an allied army of 40,000 demihumans. Commanded by Remedios Custodio who is the strongest paladin of the Holy Kingdom, the human army is too fatigued due to their defensive battle to keep the demihumans from trampling them. In order to fulfill the promise he made to the envoys, the Sorcerer King Ainz stands alone against the Demon Emperor Jaldabaoth and the Demon Maidservants under his command. And then-

Can the flame-wreathed Holy Kingdom be saved? Volume 13 points the way toward justice.

Trivia

 * Overlord Volume 13 will have the longest amount of pages in Overlord light novel series to date.
 * Ainz's supposed death have already been foreshadow in Overlord Volume 11's epilogue, where Lupusregina Beta told Enri Emmot that her master was defeated and killed in battle with Jaldabaoth.