On the 135th day after leaving the Orange Islands, it was cloudy.
Clouds drifted leisurely across the sky. The weather was fairly nice today, and it had been three days since they arrived at Olivine Gym.
Early in the morning, sunlight filtered through the thin clouds and spilled across the land. Yu Hai got up early as usual, changed into his comfortable training clothes, and took Lucario out for a run.
However, he had a little secret hidden in his heart this time. On the surface, he was out jogging, but he was actually heading quietly toward the valley where they had previously found Piloswine.
A gentle breeze brushed past them along the way, making the flowers and grass by the roadside sway and rustle. Yu Hai and Lucario moved lightly, soon arriving at that valley with anticipation in their eyes.
The tunnel Rhydon had dug through last time had long since vanished without a trace. Rather than searching for it, they might as well dig a new one.
Digging another tunnel was no challenge for Yu Hai. He had great confidence in Lucario's sensing abilities, so he recalled Lucario first and sent out Pelipper.
Riding Pelipper, he dived toward the valley and slowly landed within it. Standing at the bottom, he released Lucario again.
Lucario stood silently in the valley and closed its eyes. Blue Power of Aura slowly spread from its body like invisible ripples, extending underground. As long as there were rocky hollows beneath the ground, Aura could sense them precisely.
At the same time, Gengar floated out from the shadows, its strange laughter echoing through the bottomless valley.
Poliwrath was unwilling to be outdone and joined the search with its Aura sensing ability, moving through the valley in search of caves.
Before long, Lucario let out