“The sword you said… would be in Mt. Shirei. I-It’s gone… Not just the sword, but all Mt. Shirei.”
“…?
Put on the spot by Hohoh, Pengin faltered his way through a painful explanation. His disposition being partially to blame – but from the sound of it, Pengin himself couldn’t believe it.
As highly as Hohoh esteemed the quality of Pengin’s information, this was too much, and the Phoenix could not help but ask: “Do you really mean it?”
“Y-Yes, and before long, the bakufu will hear, hear about it too…”
“I see.” But Hohoh had to ask him – one more time. “Pengin, are you sure this information is correct?”
Pengin answered with a nod and nothing more.

Katanagatari Omnibus 2, Page 203