Ball

Heidi finally sensed that the magical power was right in front; perhaps there was only one last intersection left. Meanwhile, after roughly estimating the distance that the party had covered and the terrain of the Dark Range in this area, Gawain believed this to be the center of the mountains.

The Gondor construction team might have really emptied a section of the mountains to build this inconceivably massive facility.

What exactly was here that was worth building such a monstrous-level facility — for research or keeping guard over something?

However, regardless of what was here, they had ultimately given up this place.