"Have you heard the legend of the 'Time Tree Hole'? Supposedly, some people can pass through mysterious tree hollows and travel to the past or future."
Shade questioned the sisters again and shared his speculation based on the ancient texts provided by the Church.
"There have indeed been such rumors, but we haven't seen it ourselves—"
Grace stopped halfway through her sentence, and all three looked toward the cabinet—
"Accordion Hotel, Room 321 bedroom, third black book from the left on the bookshelf, I'm in 17—"
An exceptionally vague voice came from the lower section of the cabinet. It was so indistinct that they could not even tell whether it belonged to a man or a woman.
Shade and the sisters waited in surprise for a while. Only after confirming that the voice had abruptly vanished did Shade bend down and open the cabinet door again. As expected, there was still nothing inside.
"Was that also a voice coming from the past? Could it have been that lady you're looking for?"
Helen asked softly.
"Not certain. We do not even know whether the Accordion Hotel's Room 321 that person mentioned exists at our current point in time."
Shade had them remain in the broom closet in case the voice appeared again. He then left alone for Room 321, which was also on the third floor.
He returned less than five minutes later, holding a black notebook in hand.
"The window of Room 321 faces the Golden Music Hall. There is even a piano inside, so it should be one of the hotel's premium rooms. It seemed to be occupied by a lady alone, but she probably isn't the lady I'm looking for. I found this on the bedroom bookshelf."
He shook the notebook in his hand, summoned a sphere of