```
The group walked around the riverbed hills and then saw in the jumble of rocks behind them the wreckage of a ship submerged among the disordered waterweeds.
"How strange," Xu Yinglian spoke up, "Wood should float according to reason, why would it sink to the bottom of the water?"
She picked up a fragment of wreckage and examined it closely:
"It's light, not some kind of heavy wood, and it doesn't have metal nailed to it."
"Is there a possibility," Qiu Changtian spoke slowly, "that this is the very ship Xu Zhi boarded?"
"Traveling through here, it was suddenly swept into a secret realm, which is why no subsequent art calculation could detect it."
"It's not out of the question," Xu Yinglian answered, "If we can find the entrance to the secret realm, then this speculation will naturally be proven; if we cannot find the entrance, then the true nature of this wreckage of the ship will also be meaningless to us."
