"To qualify for a reward from the Mirror Master in the Night God Country, one must pass in less than ten days," the person in the mirror said indifferently.
Within this Mirror Heaven and Earth, passing each challenge offers a chance to gain benefits left by the Mirror Master.
The first challenge, the Cloud Stone Bridge, is not included because it hardly counts as a challenging test; it merely serves to sift out the mundane folks.
And for the second challenge, the Night God Country, rewards are given upon completion, but also with a restriction—within ten days!
The challenge of passing the Night God Country within ten days is undoubtedly very daunting; an average martial artist would need to obtain ten thousand Crystal Cores each day to suffice.
Su Changkong and his two companions gathered enough Crystal Cores in just one day, and still had plenty to spare.