The desert worm made a good seal on its outer shell, no sand seeped in at all.
However, precisely because the outer shell was sealed too tightly, it was pitch black inside and nothing could be seen.
Lucky to have made it large enough, there's no need to worry about the oxygen problem in a short time.
The speed of this worm in the desert was extremely fast, Vincent Wolf felt a strong sense of weightlessness - it was similar to the experience of bungee jumping.
The sense of time became blurry in the dark space, and Vincent did not know how long it had passed. The speed of the desert worm began to slow down, and eventually, it brought Vincent to the destination.
Upon the desert worm stopping, the shell that enveloped Vincent and the others disintegrated directly, exposing them in the underground.