Alexander had deployed all his soldiers to this campaign because he wanted to have the greatest amount of mass to smash against Jabel.
And though this had also left Zanzan weakened, with it being currently only defended by Cambyses's city guards and the garrison, due to Alexander's proximity to the city, he was not too worried.
And so Alexander's huge train of trained soldiers moved slowly and methodically without worry across the flat ground, creeping up on the unsuspecting nobles, while remembering to be vigilant about making too much noise.
And after thankfully an uneventful march, the army could finally see the walls of Jabel at around midnight.
"Looks like they don't know we are here. That's good," Menes reported to Alexander while squinting his eyes at the torches lit up around the walls.
"I'm sure they did not think I would be insane enough to attack them at full scale just two months into the treaty," Alexander slightly chuckled at the good news.