The rain had made the ground muddy, making their feet sink into the ground a bit, so they had put extra effort into every step.
Despite that, the group continued to track forward at a reasonable pace. They continued their journey, sticking close to the flowing stream and keeping watch over each other's backs, especially Mako's who couldn't fight since he was carrying Bill on his back. If he made sudden movements, it might cause Bill's stitches to tear open so he tried to minimize that as much as possible.
Luckily, the group hadn't run into any beasts on their journey thus far and things were going rather smoothly.
The intensity of the rain was steadily increasing, and it seemed likely that they would soon be caught in a genuine thunderstorm if the trend persisted.