It wasn't necessary for other People who were dragons but Silja and Mira were humans so it was necessary for their safety.
It was Garrett - the poor squire, who insisted on this arrangement.
Garrett was like a shadow to Donovan and during the past days, he has noticed each and every moment of his master.
And the conclusion was that lady Silja was the new Interest of his master and according to his further observation king, Zachary was also putting great importance on lady Silja. So as a good squire Garrett started to pay attention to Silja and things going around her. Although he didn't make it that obvious to other ladies.
Silja didn't object to the arrangements and went to the tent to get some sleep.
Although Donovan, who now knew about Silja, wasn't the slightest worried about her, on the other hand, he was waiting for her to show her powers.
Happy reading....300 ps is goal this year don't forget.