The Three Musketeers by Alexandre Dumas Chapter 13 Page 23

Farther on, a still greater terror seized him on passing by the cemetery of St. Jean, where state criminals were buried. One thing, however, reassured him; he remembered that before they were buried their heads were generally cut off, and he felt that his head was still on his shoulders. But when he saw the carriage take the way to La Greve, when he perceived the pointed roof of the Hotel de Ville, and the carriage passed under the arcade, he believed it was over with him. He wished to confess to the officer, and upon his refusal, uttered such pitiable cries that the officer told him that if he continued to deafen him thus, he should put a gag in his mouth.

This measure somewhat reassured Bonacieux. If they meant to execute him at La Greve, it could scarcely be worth while to gag him, as they had nearly reached the place