MONA was enraged.
As if it wasn't enough to see Neoma burn herself just to destroy the device that tried to steal her daughter's egg cells aka Beads, now she had to witness Nero get abducted under her nose.
Pillars of Darkness emerged from the floor– destroying the courtroom.
If Neoma didn't place barriers to protect the nobles inside the courtroom, then those people would have been hurt when the pillars of Darkness emerged out of nowhere.
"These damned pillars of Darkness…"
Mona immediately calmed down when she heard Nikolai growl angrily while slicing the pillars of Darkness with his sword.
[Golden rule: one of us has to stay sane in emergencies like this.]
Since Calypso– Nikolai's weapon– was a Holy Sword, cutting the pillars of Darkness was the same as purifying them.
Now that the pillars were taken care of, Mona moved to save her precious son.