"Bang!"
A dull sound echoed, and the disciple's face immediately turned a few shades paler, then his expression became particularly grave.
He gave Zhou Yan a deep look, but Zhou Yan's expression remained utterly serene.
Then, he took out his Qiankun Ring and retrieved a blue Heavenly Mechanism Soul Stone.
"Let's try another one."
Zhou Yan said.
The disciple of the Heavenly Mechanism Sect's face changed, and then he cautiously took out a golden Heavenly Mechanism Soul Stone.
Zhou Yan reached out into the void, and the previously spilled drop of blood coalesced again, then transformed into crimson blood, entering the golden Heavenly Mechanism Soul Stone.
Instantly, the originally transparent ethereal golden Heavenly Mechanism Soul Stone became dazzlingly radiant.
Furthermore, this golden Heavenly Mechanism Soul Stone trembled violently and began to expand rapidly.
However, this time it did not explode but gradually calmed down after reaching its limit.
