Soon, the tunnel widened.

A silhouette appeared in the inky darkness that was enough to hide a mansion.

“Found her—!”

However, as she got a better look at the figure, Illumia blinked (several times in quick succession).

Though she had felt an aura similar to that of Gray’s a moment ago, the one who stood there was a completely different person.

The figure, clad in a strange mask and some armor, turned slowly face to her. Many bone soldiers stood behind her. Even in this strange, underground terrain, they extruded a shockingly powerful aura.

Lord El-Melloi II's Case Files: The Atlas Contract (Upper); Chapter 2, Part 3