If there were really assassins, then no one could be sure if there were also hidden assistants near the carriage. With her child, Faye couldn't take any risks, so she flashed back with her child, noticing the inorganic look in the assassin's eyes when the assassin missed the first strike.
She also felt the chaotic flow approaching from the side.
She turned her head and saw the arrow already closing in, and as a mage, Mowish's second daughter calculated its trajectory first - it would hit the child in her arms as it turned.
This discovery prompted Faye to immediately activate the Petrification Spell on herself; there was no time to use a spell formation to deal with this magic arrow. The young mother turned sideways, intending to block the arrow's trajectory with her body - Faye understood that doing so might result in her death, but not doing so would surely lead to the child's death.
Then a gunshot sounded.