Luke explained to them what happened in the last few days, and they had a hard time believing that the moving fortress could also work as spaceships… that was just too surreal. It was quite funny to see them react like that when they now had the strength to knock down cars with a single kick. Nevertheless, they needed that kind of ability, it was beyond them right now, though. The reason was unknown.
In any case, Luke confirmed that everyone leveled up at least ten times. His friends were already above level 120… he didn't notice their progress even though some of his skeletons were helping them. Also, they found the location of three crystals, and for whatever reason, those crystals were spawning monsters rather regularly… there was no point in doing that when their monsters were basically not making any progress in taking over the area… that was another mystery that Luke would have to find an answer to someday.