The next morning Rowan focused on the most dangerous structure in the entire city the underground mana reservoir in Deepward Hollow. If the reservoir destabilized the entire city could experience catastrophic surges. Rowan knew the rogue faction would target it sooner or later. He needed to assess the cavern’s condition before any further sabotage.

Aldren met him outside the Planning Hall with a team of ward engineers and two mages from the academy. The mages were handpicked by the king for loyalty and calm judgment. Rowan appreciated the precaution. The group moved quickly through narrow streets toward Deepward Hollow.

The Hollow felt colder today. Mana fog that usually drifted lazily through the ruins now condensed in thick curtains. Rowan felt the pressure change immediately. He placed a rod near the old archway. The rod glowed with muted light then flickered rapidly. Turbulence.

Aldren stepped forward scanning the surroundings. He ordered the engineers to keep close and warned everyone to avoid sudden movements. They descended into the old drainage channel using a rope secured by a guard. Rowan’s boots touched the moist stone floor. The tunnel hummed faintly like distant thunder echoing through stone.

As they approached the cavern the ground vibrated. Small stones rolled from the walls. Rowan’s breath tightened. This level of pressure fluctuation should not be happening unless someone tampered with the original rune lattice.

The group entered the main cavern. Mana fog swirled in chaotic spirals instead of drifting calmly. The three leyline convergence points glowed with irregular pulses. Rowan stepped closer to the center and knelt. Cracks spread across the floor forming jagged lines. The sight chilled him. These cracks had not been here last week.

He placed tuning rods into different sections of the ground. All three rods glowed in contradictory patterns. One pulsed rapidly. Another dimmed entirely. The third vibrated in sharp bursts. This meant the leylines argued with each other, their flows colliding instead of merging. Rowan whispered that this was the worst possible sign.

Aldren looked down at him. “Sabotage?”

Rowan nodded slowly. “Yes. And recent.”

One of the engineers inspected a section of the cavern wall where runes were carved centuries ago. She gasped and called Rowan. He studied the carvings. New markings overlapped the old ones. The signature matched the rogue faction again. They manipulated the lattice to create instability. Perhaps they intended to provoke a controlled surge to demonstrate their ideology. Or perhaps they intended to scare Rowan. Either way the danger was real.

Rowan stood and faced the group. He explained that the reservoir needed immediate stabilization. If left as it was the next natural leyline pulse could fracture the cavern sending mana shockwaves into several districts. Aldren asked for orders. Rowan assigned roles quickly. Engineers carved emergency plates to redirect pressure. Mages prepared stabilizing sigils.

Rowan approached the central convergence point. He saw faint shimmer waves rising from the floor like heat but colder. He knelt and pressed his palm to the ground. The mana pushed back sharply. He felt like leaning against a storm.

He took a deep breath and traced a symbol across the floor. The rune pulsed weakly. He increased the pressure. The rune flared. The cavern trembled violently. Aldren grabbed Rowan’s arm yelling that the structure was shifting. Rowan pushed forward ignoring the shaking. The rune snapped into place and the tremor softened. One point stabilized.

Rowan moved to the second convergence. It pulsed erratically. He repeated the process. The cavern trembled again but yielded slowly until the pulse aligned with natural flow.

The third convergence resisted harder. Mana erupted in thin jets scraping the ceiling. Engineers shouted warnings but Rowan pressed forward. He traced three sigils instead of one forcing the convergence into alignment. The cavern shook violently. Dust filled the air. A section of the ceiling cracked. Aldren shielded Rowan with his arm as fragments fell. Finally the mana pulse slowed. The convergence stabilized.

Rowan staggered back breathing heavily. His head ached from the pressure. Aldren steadied him. Slowly the cavern grew quiet. The fog thinned. The rods glowed in harmony once more.

Rowan looked across the cavern. Stabilized. For now.

But he noticed something else. A faint shadow near the far wall. A figure standing still. Watching. Then disappearing into smoke. Too far to pursue. But unmistakably a rogue mage.

Rowan clenched his jaw. The cavern would be their battleground. He could not allow it to become the city’s downfall.

They returned to the surface exhausted but alive. Ward engineers took detailed notes. Mages sealed the entrance with emergency runes. Aldren insisted on doubling the guard presence. Rowan agreed.

Back at the Planning Hall Rowan updated the zoning law draft adding a new section specifically for Deep Arcane Infrastructure Protection. He realized this reform was no longer about land use alone. It was about safeguarding the city from internal collapse and external sabotage.

As dusk settled Rowan looked out the window. Mana drifted gently again. The city breathed easier because of today’s effort. But tomorrow the rogue faction would act again.

Rowan whispered that he would always be one step ahead.