Considering that they were flying so fast to the point where they couldn't even keep their eyes open, it didn't take long to arrive behind the Army of which from the looks of it was at least 2 Kilometers away from the Kingdom. The Army really didn't take a risk, I suppose they were left traumatized by damage the two Fire Controllers blew above their heads.
After that messenger got Torched, the Fire Blasters arrived behind the Army a bit over 10 minutes later with a lot of effort put in! Mogranius used a lot of his Stamina throughout the way due to the intense maximum speed required for this task, he won't be able to provide a long lasting contribute in battle compared to the Grand Master and the Electus.
