The Medusas helped with placing Pillar just as the Men did.
Victoria supervised the process herself, and any error was recorded down for immediate correction.
After all, according to Array formation that was given to them, mistakes could not be afforded.
A little differentiation in margin could spell a weakness in the Array, and a weakness to the Array was a risk at the lives of the medusas and Nagas.
It was best to do the hard work now, than fight a hard battle later on.
Meanwhile, penny trained with Caren whenever the opportunity permitted it. Eros would watch and supervise it all from his place on top the mountain.
He would look below and nod from time to time at the effort everyone was puting in for the task at hand.
Even the little medusas and nagas would sometimes help to transport would from the forest back home.