Ace's spaceship docked on his base at Mt. Ravencroft.
His entry on this planet was done as stealthily as possible but he knows that the Empire must've detected his spaceship.
This is why he decided not to immediately visit his base and docked somewhere else before using his stealth mode.
After using this mode including his Arcane Technology or Optical Phenomena Manipulation, he then considered that it was already safe to go to his base.
He didn't want to engage in battle against the aliens yet so he has to be careful.
"Avalon… How many Mesospheric Altitude Guns were made by now?"
[ Three. Because we have shifted our priority with building enough mid-class Transatmospheric Battleship, the creation of Sattelite-Class Weapons slowed down. ]
"Hmm… I can understand that. Anyway, I guess Veda is still manufacturing those Seventh Gen?"
[ Correct. At the moment, there are already 75 Adepts and Sages who had received them. ]