Robert was looking at the runes being used throughout the floating fortress, and he then noticed the flow of mana.
Mana flowed through the runes carved into the walls, moving along the passage and deeper into the fortress. Whenever the fortress shook, the flow shifted, and some of the engravings shone brighter than others.
Robert stepped closer, his eyes following the lines. The more he looked, the more he could see how the separate engravings connected.
"Incredible... So that's how this works. I just need to follow the flow."
Robert followed the mana he sensed. The flow divided at several points, spreading into other parts of the fortress, but a larger current continued down the passage ahead.
He couldn't be certain what it led to yet, but whatever was drawing that much mana had to be important.
Reval stepped beside him and looked at the runes. "You found something?"
