Between 13-14:00 a staff officer was sent back to Três Rios to address a delay in the food trains. Now Muricy learned of major developments -Goulart had left Rio de Janeiro and Âncora was to negotiate with Kruel. The following hours were a dialogue between opposing commanders through emissaries.

-M: I'm preparing to attack. Verify if the Âncora-Kruel summit is true and prevent unnecessary bloodshed.
-CM: I have no knowledge. I won't fire first but will fulfill my mission to defend.
-M: And I'll fulfill my mission to move to Rio de Janeiro. I attack in one hour.

Cunha Melo then confirmed the summit with his superiors and was told to do whatever he wanted. Then at 14:30:

-CM: I'll let you pass with no resistance, if 1)you don't occupy the fuel refineries, 2) don't enter Petrópolis there were two routes, through the city center and through the outskirts to not demoralize Kerensky and 3) don't immediately advance to make it seem a chase/rout.
-M: I need fuel and want to deprive you of it. I will decompose my column and will send part of it through the city center. I move in two hours, get out.
And Cunha Melo lost. The battle was over.