Changes

;See also [[Garro: Oath of Moment (Audio Book)]]

Garro traveled to [[Calth]], the [[Ultramarine]] staging world that was besieged by the [[Battle of Calth|traitorous surprise]] attack by the [[Word Bearers]]. On the planet, Lieutenant Olen and his men of the [[Espandor]] Imperial Auxilia fought on the surface as they tried to cross the Plains of Dera to the underground cave network that would provide shelter. However, they were prevented from reaching safety by the appearance of [[daemon]]s. Before they were overrun, a grey [[Stormbird]] appeared and Garro dropped amongst the daemons as the ship left once again. With his great sword ''[[Libertas]]'', Garro cut through the daemons, relieving the soldiers before he confronted them, demanding information on where the 21st Company of the Ultramarines and Brother-Captain [[Erikon Gaius]] was located. Olen told him that the 21st were seen near Numinus, then asked for his identity and his [[Legion]] affiliation, to which Garro responded with his name and said he was a Legion of one.{{fn|2a}}

A vision came over Rubio, and he saw a battle in which Gaius was felled. Garro called his name, pulling him out of it and warning him of an attack. Rubio finally pulled out of it, and he hurried to Gaius's position to fight by his side as more cultists attacked. Gaius charged into them, fighting deep in their massive wave, but they were able to pull him down by their number. Gaius was able to push forward and break free as Rubio moved into them with Garro. As they fought, Garro spotted the true enemy force, and a [[Defiler]] attacked. The Ultramarines' weapons were ineffective. Rubio recognized the scene from his vision, and he charged forward, but he was blasted from his feet before he could reach Gaius. The Chaos machine then rammed a leg into Gaius, but Rubio was able to pull him free soon after. Before the Defiler could blast Rubio, Garro charged forward and jumped onto the machine's turret. Using ''Libertas'', he was able to stab into it as [[Devastators]] moved into position and blasted it. It detonated soon after, with Garro jumping free, breaking the cultists' attack.{{fn|2b}}

The battle was too much, and Rubio ordered the Ultramarines to fall back to the rail tunnel at their back. Word Bearer [[Terminator]]s moved forward then, devastating the remaining Ultramarines. Garro told Rubio that they must pull back from the attack, and Rubio said they could not. Garro prodded him forward, pushing him to rely on his [[psyker]] powers to win. Rubio could not take it anymore, and he lashed out with his powers. The massive blast hit the Terminators and the tunnel mouth collapsed on top of them. Although the Ultramarines had won, they no longer trusted Rubio and shunned him for his deed. Garro offered him the blade of ''Libertas'' and had Rubio swear his allegiance to Malcador.{{fn|2b}}

;See also [[Garro: Sword of Truth (Audio Book)]]

En route to the Kuiper belt, on the outskirts of the Sol system, Garro became impatient with the lack of communication and sought out Khorarinn in the training room. Garro only interrupted when Khorarinn was finished with the last of the combat [[servitor]]s, and the Custodian challenged him to combat, taunting him into drawing ''[[Libertas]]''. They fought, and Garro realized how impressive the Custodians were at combat and that he was just being toyed with. Garro took an opportunity when Khorarinn thought to win to move in close, disarming the Custodian of his [[Sentinel Blade]]. Garro then asked if the Custodian was to disengage, and the Custodian responded that he would tear Garro apart if the blade touched him then admitted that he underestimated Garro. The Custodian then tried to dismiss Garro, and Garro retorted again that he was not under the Custodian's command. In response, Khorarin decided that he would give Garro information for winning.{{fn|2c}}

Garro told Rubio what took place and the comments regarding use of psyker powers, and Rubio balked at the Custodian's arrogance. Garro pushed back a little and said for Rubio to keep his focus clear. He then explained their mission to Rubio, and Rubio began to research the data that they had before he mentioned that he overheard comments from the battleship's crew of a "zero option": that the small, barely armed fleet is to be destroyed at the first sign of anything amiss. This worried Garro, but Rubio said that Khorarinn's precautions could be correct. However, Garro said that they were fighting for the Emperor's dream, and that they would not kill out of fear. Once the ''Nolandia'' arrived, its weapons were made ready, making it clear that the refugee ships were their prisoners. Garro went to the bridge as they were receiving hails from the ''Daggerline''. Garro insisted on making [[vox]] contact with the flotilla's ad hoc leader: [[Macer Varren]], former Captain of the World Eaters' 12th Company. Varren is rough and worn out, expressing sarcasm at the supposed threat from the small ships to the mighty battleship. He then showed recognition when Garro identified himself, expressing disbelief since he was told that Garro had been killed by [[Typhon]] at Isstvan. Garro muted the vox then told Khorarinn that he knew Varren by reputation as a tough company captain and pit fighter who (unlike the majority of the World Eaters) had a reputation for being honourable. Khorarinn warned the fleet not to break formation and to stay powered down until he (and only he) was satisfied that they were not agents of Horus. Varren raged at the order, but Garro explained that it was a hard time and that precautions must be taken, then expressed the need to talk face to face. Khorarinn expressed anger at the offer to meet with Varren, but Garro taunted him into joining by implying that the Custodian could stay if he was afraid of a trap.{{fn|2d}}

Back aboard the Nolandia, Rubio warned Garro what he felt, though he could not say from whom. This worried Garro, but they are interrupted by a message breaking into Garro's Legion vox from Hakeem. Hakeem stated that he believed there are Warmaster traitors at large. He stated that he thought Varren was honest, but that Rakishio and the Emperor's Children were not. His proof is that they call Rakishio "The Shadowed," and that he was good at deception. Additionally, they meet in secret aboard the tanker ship ''Mistral'' in Warrior Lodges meetings. Hakeem then ends the conversation. The message made Garro worry as to what Khorarinn would do if he found out, and Rubio explained that they didn't have much time due to the refugees lacking nourishment. They were then interrupted by the Custodian demanding that they come to the bridge. Once there, he tells them that he is issuing a vox alert to all ships that they are to stand by to be inspected deck-by-deck. The ''Daggerline'' tried to respond, but Khorarinn refused to accept. Garro explained that the action will only panic the civilians, and the Mistral broke formation and attempted to flee. After failing to respond to hails, Khorarinn ordered it destroyed, as an object lesson to the others. Garro pleaded for the Custodian to stop as Rubio used his power to see what was happening on the ''Mistral'', and he was able to sense something dark trying to hide from him aboard it. As Garro pleaded over the vox for the ''Mistral'' to stop, Khorarinn was able to get a firing solution and destroyed the ship.{{fn|2d}}

Hakeem attacked Garro's loyalty, his religious fervor in supporting the Emperor. At Varren's word, the three warriors charged. Rubio blasted the White Scars with his powers, including the Techmarine, and Hakeem engaged Garro and Varren with his twin power swords. Hakeem gravely underestimated the World Eater's fury and the Death Guard's skill, falling back once he has lost an eye to Varren's sword and had both of his own snapped in two by ''Libertas''. Once he broke free, he ordered his men to kill the loyalists with their boltguns, but Rubio finally found Khorarinn's teleport homer and activated it, allowing them to escape. Once back, Garro ordered the ''Nolandia'' to send the true accounts of what took place then to stop firing except on the ''Daggerline'', after Varren said that they should be destroyed as punishment.{{fn|2f}}

===Part Two: The Shield===

; See also [[Burden of Duty (Audio Book)]]

He made his way through the fortress, from the Great Hall of Victories, to the Statue Garden and the Gallery of Heroes, and so on through the massive ship to his target. Once there, he found himself before a huge gate with the emblem of the Imperial Fist etched into it. Garro disabled the guard-servitors with ''Libertas'' and then used a seemingly alien device given to him by Malcador to open the chamber, removing the force-fields, psychic protections, and other measures that contained the group of former Librarians, who have had no contact with their battle-brothers or their primarch in years. The former Librarians were there willingly, obeying their Primarch.{{fn|2g}}