One day, two days, three days...
It could be said that the most wretched he had ever been in his life was without a doubt today—right now, this very moment!
Too miserable.
Five days. A full five days.
Did anyone know how he had spent these five days?
Leaving everything else aside, he had actually cultivated the two bizarre skills of surveying and burrowing to a level nearing transcendence. There was truly no one else like him.
Especially his burrowing technique. If anyone was interested, Li Su could talk with them for three days and three nights without sleep or rest, telling them how rats dug burrows, how centipedes dug burrows, and then earthworms, rabbits, and so on...
That was right. What he had mastered was not the burrowing technique of a single creature, but the burrowing skills of dozens upon dozens of creatures.
He had no choice. In order to conceal his aura as thoroughly as possible, Li Su did not dare reveal even the slightest bit of his strength, afraid of leaving behind traces of his presence.
And beneath the ground, there were no shortage of native creatures.
Setting aside the powerful ones, the vast majority of these creatures followed their animal instincts—that was, hunting the prey they were familiar with.
Underground creatures generally hunted through sound and vibrations.
In other words, they determined whether something was their target based on the disturbances it made while moving underground.
For that reason, Li Su could only keep changing into different animals, using entirely different kinds of movement to avoid being targeted by other creatures.
Even so, he was still blocked off several times and targeted by underground creatures. And in order not to expose his aura, Li Su could only suppress his strength to an extremely low level and