C742 Tao Accumulation Pill

Compared to the sixteenth layer, the seventeenth layer had even fewer secret manuals, with just four bookshelves in total.

Yet, their placement on the seventeenth layer spoke volumes about the rarity of these tomes; each was undoubtedly invaluable.

Upon activating the scanning feature, Zhao Yu's eyes sparkled with excitement.

"These are actually formation secret manuals