There were three reasons why Alicia did not kill them and only told them to return to their place.
First, Scarlett and many of her people were dying.
They would die if she did not save them immediately because they were heavily injured.
Second, she did not have unlimited mana.
Using Tier-5 magic consumed a lot of mana. Aidan had over ten thousand subordinates, so she was sure she would run out of mana before she could kill them all.
And lastly, she only had five subordinates.
Even though they had the upper hand, the tables would turn if they fell to the ground or her eagle was injured.
Including him, Aidan had one awakener at the Grandmaster rank, four people at the Master rank, and over ten thousand subordinates at the Elite rank.
On her side, she only had one subordinate at the Grandmaster rank and four at the Master rank.
If they fought, the possibility of them winning the fight was only fifty percent.