For now, what Ferdinand had to do was to ensure that she was safe wherever she went so she would not experience any more traumatizing events.
And yet, people simply kept targeting his wife. Ferdinand would have gone to another war already if not for the fact that those bastards trying to harm Arabella might have taken that chance to attack her.
Ferdinand wanted to send more people to track those who tried to hurt Arabella, but Elrond did not allow him to bring more people from Estrella again.
Elrond reminded that bringing too many might raise the mana levels in Valeria where they would temporarily stay. If the mana was too high, it might harm the citizens who were not used to concentrated and high amounts of mana.
Thus, Ferdinand had no choice but to maintain the usual numbers and only alternate them depending on what tasks needed to be done.
There were a lot of rules they had to abide to as well.