Mistergo covered a vast area; otherwise, it would not have been called the most magnificent structure in the Source.
Because of its immense size, Mistergo's interior could accommodate numerous gigantic Abyss Creatures. Even at Riezel's group's pace, reaching their destination still took quite some time.
More importantly, various obstacles within Mistergo forced Riezel and the others to slow down.
The endlessly attacking Abyss Creatures were one obstacle, and the Dangerous Terrains scattered throughout Mistergo were another.
While fighting and charging forward, Riezel's group encountered several such Dangerous Terrains.
The first was a sprawling patch of Thorny Blood Vines that had grown with incredible lushness and occupied an enormous area.
These Thorny Blood Vines were not Abyss Creatures, but Abyss vegetation that had naturally grown under the pollution of Abyss Aura. They possessed terrifying toughness and aggression. Any creature that came within a certain distance—even an Abyss Creature—would instantly be entangled by countless thorny vines, dragged into the vine forest, and devoured by all the Thorny Blood Vines.
Yes, they ate people.
That alone would not have been so bad, but their toughness was extreme. They could withstand even a Saint's attacks to some extent and were very difficult to sever.
Yet these Thorny Blood Vines stretched out in a dense expanse, completely blocking the way. It was impossible for them not to become an obstacle.
Riezel had attacked the blood vines as well, firing off strike after strike of the supposedly lethal Cleave, but it could only cut through a small portion before losing momentum. It simply could not slice open the entire vine forest.
So Riezel hardened his heart and directly fired a Purple at them. Only then did the imaginary mass, capable of tearing even space apart, blast open the vine forest and clear a path for the