My Servant System - Chapter 1303 - 1302: Challenging Trial (7)

... rock, getting an idea on how deep and winding this tunnel was; it wasn't my specialty, and I wouldn't say I was completely confident in the results I got, but it was a start.

Alongside the sound that echoed back to me, I also inhaled the cool and moist air that brushed against my skin the closer I got to the entrance of the tunnel, searching for any scents that might be lingering around that weren't from the egg.

The echo was absurd, and the taste of the air was just... wet and e ...