Just to be sure that he wouldn't be noticed, Luke made his fortress move away from the planet. He wanted to use the fortress speed and reach the nearest one, but while there was a pretty big planet nearby, after six hours, Luke stopped since he didn't see the fortress getting any closer. The vastness of the universe was scary sometimes… even with that stupid speed... it was insane.
In any case, at least Luke had some time to think carefully about what he should do to deal with the enemies. Perhaps if he uses the mana of two clones, he could kill one of the giants with a single attack and use the remaining to fight the other. It shouldn't be hard since he will gain a lot of experience after killing one of them. However, the strain of his body with that much power… It was hard to say if he could survive it. To deal with that problem, Luke had to become tougher and to become like that, he had to increase his endurance.