The Hunchback of Notre Dame by Book 11 Chapter 2 Page 9

Quasimodo ascended the tower staircase for the sake of ascending it, for the sake of seeing why the priest was ascending it. Moreover, the poor bellringer did not know what he (Quasimodo) should do, what he should say, what he wished. He was full of fury and full of fear. The archdeacon and the gypsy had come into conflict in his heart.

When he reached the summit of the tower, before emerging from the shadow of the staircase and stepping upon the platform, he cautiously examined the position of the priest. The priest’s back was turned to him. There is an openwork balustrade which surrounds the platform of the bell tower. The priest, whose eyes looked down upon the town, was resting his breast on that one of the four sides of the balustrades which looks upon the Pont Notre-Dame.