During her imprisonment, she had nothing much to do so she would analyse the nestling's behaviours sometimes.
Artemis was someone who was notoriously self-centred.
It wasn't out of the ordinary for him to promise everything as long as he got his wishes. And she didn't want to see half of her team's future food supply swindled away from them, just so Artemis could get the best room all to himself when there were several others he could use.
And so Arsinoe rushed to interrupt their argument before the mischievous snakes got their way.
[Why don't you use the underground cells like Morgana?] she suggested. [They are spacious enough for anything.]
Anything to screw with her nemesis's claim was a good enough plan.
Artemis was about to complain, but when he saw it was Arsinoe he broke into a savage grin.
[I see you can't wait to become my poison tester. But you don't need to assist me so soon – I already know how to choose the best spot.]