Echolocation

I had a mission. I fired an echolocating burst of clicks.

And suddenly there was a picture in my brain. Almost like an X ray. More like an Etch-A-Sketch drawing.

Lines and contours representing the underwater world around me. The ocean floor, smooth, sloping away. A school of fish, too small to interest me.

Then the picture was gone.

I clicked again and it was back. But now the picture included the Sea Blade.

Beneath me and further out to sea. Motionless. Almost as if it were waiting for me.

I filled my massive lungs and dove. Deeper. Deeper.

I clicked again.

The Sea Blade had to know I was here. Its sensors would have heard the echolocating clicks. Its version of sonar would have painted me. And, unlike any human crew, the Yeerks knew enough to pay attention to strange animals.