Inside the secret chamber of the Juéchén Sect, the candlelight flickered brightly.
Yan Luoluo stared at the open copy of *True Explanations of the Abyss of Time* spread across the desk, her brows locked in a tight frown. The pages were densely covered with inscriptions:
[When Δt→0, dθ/dτ=lim(Δθ/Δτ)]
Chapter 88