Although Arnold and Swain did not seem to get along very well, they actually worked together often. Arnold simply disliked Swain's overly cautious style.
Though he always said he did not like acting alongside Swain, Arnold also knew very well that someone with his temperament needed a Swain to clean up after him.
Swain could always consider situations Arnold failed to account for, while Arnold usually only needed to charge ahead and kill the enemy. Swain handled everything else.
As for the Tenth Legion, that was perfectly normal. Yadelik and Swain had always been both mentors and friends, and the two legions had long maintained a good relationship.
After Lucas escorted Duke to Barren Island, he politely declined Duke's invitation to come up for tea. "I still have matters to handle. Don't leave Black Sail for the time being. We may have more questions for you later. Also, aside from members of our Third Legion, you can ignore anyone else who comes looking for you."
"Lord Swain is also paying attention to this matter. Leave everything else to us."
After saying that, Lucas took a boat and left. He still had many matters to deal with.
Duke indeed felt much more at ease knowing he had a force he could rely on. Without the Third Legion looking after him, there was no way he could have returned to the island so easily.
From beginning to end, Lucas had not asked about the other plane. That was Duke's private matter, and whether to report the relevant intelligence was entirely up to him.
Intelligence on other planes had never been in short supply. With astrologers around, many other planes could always be discovered.
However, there was still a long way from discovering a plane to deciding to launch a planar war and