A narrow stone corridor stretched deep beneath the mansion far beyond the layers known to servants or even most members of the family the deeper one descended the heavier the air became not simply dense but structured as if the very space was governed by a different law ancient mana inscriptions covered the walls glowing faintly in slow rhythmic pulses like a breathing entity Neuro walked in silence behind his grandfather Darius his steps steady unaffected while the pressure gradually increased around them each step downward felt less like movement and more like entering a different layer of existence
Darius stopped before a massive gate formed from dark stone veined with thin lines of silver mana that pulsed with controlled intensity this was not a simple door it was a seal multiple circular formations overlapped across its surface each rotating slowly shifting patterns as if analyzing anything that approached it the air itself seemed to tighten around the structure
"This place…" Darius said in a low controlled voice "…is not a training ground"
Neuro did not respond he simply observed every detail the rhythm of mana flow the structure of the inscriptions the weak fluctuations hidden within stability he did not attempt to interfere he only recorded
"It is a sealed development field" Darius continued "constructed in layers each layer increases pressure and forces adaptation or collapse"
He raised his hand slightly and the moment his mana touched the gate the formations reacted instantly lines of light spread outward recognizing his authority the gate opened without sound not by force but by permission