"What if...

how could I let him go off alone?
He may drown himself....

Ach, what a blunder! I can't." And he ran back to overtake Raskolnikov, but there was no trace of him.

With a curse he returned with rapid steps to the Palais de Cristal to question Zametov.
Raskolnikov walked straight to X---- Bridge, stood in the middle, and leaning both elbows on the rail stared into the distance.

On parting with Razumihin, he felt so much weaker that he could scarcely reach this place.