章 776: Chapter 239 Door_2

At other times, he mostly operated in "I am thinking" mode.

Like now.

Link figured he needed something to filter the air, and then he came to understand the secret technique.

He called it a secret technique, not witchcraft, because Link knew, as the principle was unclear and could not be promoted, it was not worthy of being called witchcraft.

"Oh."

Hu Suqi didn't probe too deeply, she put the air filtering light mask on her face, experiencing it first-hand, hoping to reverse-engineer the principle.

Many of the ancient witchcrafts she mastered were derived this way, from the ancient witchcraft artifacts.

"Brother, where are we going next?"

Brother Shi asked out loud.

After entering the fog, the five-man squad under Link's direction had already stopped and stayed put for a while.

Now that the problems of low visibility and difficulty breathing had been solved, they should continue on their way.

"Wait a bit longer."