Although the situation was frightening, Ed's job didn't change. He had set out to gather information and at first glance, there was plenty to gather. In fact, the job seemed like it would be a cinch for Ed.
The only issue he might have was determining the method of approach. If he just walked straight in he would be sentencing himself to death. Fortunately, he had developed many tricks at this point so even that was a non-issue.
Ed's figure disappeared into the ground and started digging towards the human base. This was the most silent approach he could think of in the spur of the moment.
It was a good idea but the only problem was that after Ed calculated himself to be under the base, he was stuck there. He didn't know where anything else was located.
Fortunately, with everyone stepping about to faithfully carry out whatever their duties were Ed had enough to at least form an educated guess.