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"Condition 2, 3, 4, are relatively easy to complete; I can start doing them now."
Fang Zhixing quickly came up with a plan in his mind.
He put the Eight Secret Books back in their place and turned to walk out of the secret room.
Looking around the outside hall, there was a straight line just between the bookshelves.
"Xigou, keep an eye out for me."
Fang Zhixing closed his eyes, controlled his stride, and took steps forward.
Xigou watched intently, knowing that Fang Zhixing was working on Task 2: walking 100 meters in a straight line with his eyes closed.
From a practical standpoint, it's impossible to walk in a straight line with closed eyes as without references from the surroundings, one would eventually deviate.
And as expected, Fang Zhixing soon veered off course, turned to the left, and then crashed headfirst into a bookshelf.
Fang Zhixing opened his eyes, looked back, and realized that he had walked less than thirty meters.