Previously, Matteo had said something while bragging about his concrete bunker. It was something about drilling a hole in his bunker. Jude had not thought much of it when he attacked that bunker, but as he dug through his memory, he remembered it.
"A bunker like that has to have ventilation holes and openings."
Looking around the bunker, he found that the garden of a certain house was strange. "It's messy over there. That place has a lot of signs of activity."
It had been snowing for several days, so the garden was filled with snow that had turned to ice. If no one had stepped on it, the ice should be clean. But the snow in that garden was a mess.
"It's proof that people have gone through there several times..."
It would have been hard to find something like this if he had only been looking for an opening from the ground, but thanks to the dimensional wall and the [Griffon's Eye] skill, he could find it easily.
