Dai 61 Mahou Buntai (4)

is the fourth volume of the Dai 61 Mahou Buntai light novel series, written by Kohei Ito and Illustrated by Kaori Mizukami. It was released under the Dengeki Bunko Imprint in July 2003.

Synopsis
Kikino went to the Observatory and reunited with his father, Ergens. At the same time, Rogune and Deliel also infiltrate the Observatory at the will of the Squad Union. However, under the hands of Assistant Secretary Well, who took control of the headquarters of the Hodofu, the royal capital was undergoing an incident. And it wasn't the beginning, it was the last act of a pre-prepared plan. Ergens disappeared when he learned of the existence of the new weapon "Reversal Layer Bomb", which is the key to the strategy. Kikino, who believes in his father's return, decides to confront the Hodofu headquarters. The long four days of the royal capital that unfolds from the day after the last volume of the first volume. And people who are confused. What they asked for and got.

(source: Amazon JP - Translated)