The ''Invincible Reason'' was the first ''Gloriana''-class vessel to be constructed. As a result, it had a level of detail and craftsmanship not seen in subsequent vessels.{{Fn|4}} During the Great Crusade, Castellan [[Duriel (Dark Angels)|Duriel]] was installed into its command chair and was in command of the vessel when [[Lion El'Jonson|The Lion ]] was not aboard.{{Fn|7a}}

The ''Invincible Reason'' was a colossal vessel even by the standard’s standards of other ''Gloriana'' class Battleships, stretching out a total of Twentytwenty-Eight kilometers eight kilometres from bow to stern. With , with a grand processional positioned under its dorsoventral spine that ran the entire length of the ship. Where Along this were inbuilt strongpoints that would serve as checkpoints for thousand’s thousands of her million -strong crew of men and women to transit through every hour while attending to their duties.{{Fn|7b}} A system of [[Grav-Vehicle|Gravgrav-trains]] also ran throughout the ship, and could transport anything from Supersuper-Heavy heavy equipment to crew personnel to various points within the vessel.{{Fn|7c}}

The personal ship of [[Primarch]] [[Lion El'Jonson]]{{Fn|1}}, For weaponry the ''Invincible Reason'' led the Dark Angels effort in the possessed [[Rangdan Xenocideslance]], [[Battle of Diamat]], s{{Fn|7e}} and the [[Thramas Crusade]]. Following the Thramas ambush against the [[Night Lords]], [[Konrad Curze]] became stranded on board the ''Invincible Reason'' for a time. However, the Night Haunter found ample hiding places on the immense vessel, and terrorized the bowels many hundreds of the ship despite repeated Dark Angels search parties. He eventually left the vessel when the Lion led the Dark Angels fleet to [[MacraggeMacroweapon|Macro-ordnance batteries]].{{Fn|27f}}

Upon the defeat of Curze on Macragge by the Lion, the Night Lords Primarch was again chained within the ''Invincible Reason''. Following the abolition of [[Imperium Secundus]] and the journey by [[Roboute Guilliman]], and [[Sanguinius]] through the [[Ruinstorm]] to try and reach [[Terra]], the vessel was part of the combined loyalist fleet. However, upon the arrival at [[Davin]], Sanguinius boarded the ''Invincible Reason'' and took the captive Curze with him for his own pilgrimage on the world, dispatching several Dark Angels guards through non-lethal force in the process. In the subsequent [[Second Battle of Davin]] the ''Invincible Reason'' engaged in a vicious duel with the [[Daemonship]] ''[[Veritas Ferrum]]''.{{Fn|3}} Later during The Lion's [[Exterminatus]] of [[Barbarus]] the ''Invincible Reason'' was attacked by the [[Emperor's Children]] [[Heavy Cruiser]] ''[[Sybarite (Heavy Crusier)|Sybarite]]'', which was now possessed entirely by a [[Daemon]]. The ''Invincible Reason'' was heavily damaged in the battle after the ''Sybarite'' rammed it. The vessel sought repairs on the [[Forge World]] of [[Thagria]].{{Fn|6}}

* [[The Dreadwing Sacristy]]{{Fn|7d}}

==Related ArticlesSee also==

*7: [[Lion El'Jonson: Lord of the First (Novel)]]:**{{Endn|7a}} : Chapter 1 , Section II**{{Endn|7b}} : Chapter 3 , Section II**{{Endn|7c}} : Chapter 3 , Section IV**{{Endn|7d}} : Chapter 4 , Section III**{{Endn|7e}} : Chapter 7 , Section II**{{Endn|7f}} : Chapter 9 , Section I