panther liver

Lancelot rushed the panther and tried to strike it again.
And in fact he did, and managed to thrust his lance's forged iron shaft deep down the beast's throat into its heart: thus was the panther very seriously wounded.
Although it was greatly shocked by the hurt it felt, it still could not understand what or who had caused it. It looked around, intending to eat and kill whoever had done it. But it saw nothing except the blind of twigs near him.
King Arthur bestirred himself and waited no longer to deal the panther a blow ... through its body right into its liver.

The Marvels of Rigomer