Select the correct inference of the given passage from "The Cask of Amontillado."
"These vaults," he said, "are extensive."
"The Montresors," I replied, "were a great and numerous family."
"I forget your arms."
"A huge human foot d'or, in a field azure; the foot crushes a serpent
rampant whose fangs are imbedded in the heel."
"And the motto?"
"Nemo me impune lacessit."
"Good!" he said.