Next Day.
Jack and Lilith were standing on top of a tall mountain, about 20km away from the Second Fortress.
No one was aware that they were here because Lilith made it so that their life signals wouldn't spread anywhere. That is usually how Demon-Moon individuals find out that someone of their level is at the Continent by hearing their powerful life signals.
There is a common mistake, that stronger people concentrates on Aura's to find out how strong the person is, but that is not correct.
People can control their Auras to make it weaker, while no one can lie with Life Signals.
Life Signals with Demon-Moon individuals is very strong, filling with vitality.
There is a huge difference between Calamity and Demon-Moon individuals. Calamity is like a house fire, while Demon is wildfire.
Lilith used her powers to make their life signals look like they are pair of mortals while they hid their aura's by themselves.