As Adriana was home fighting her evils and cursing Aiden Rockerfeller over and over, Aiden was also fighting his own evils at the secret location he currently was.
The leader of the mercenaries didn't want to talk and kept saying Aiden was messing with the wrong person and will surely be dealt with if his employer finds out what he has done.
When Aiden redirected Ariana's poisoned pin, it didn't hit him in the chest like the drivers, it rather hit him in the leg. As a result, the toxin would take a while to get to his heart.
He would start feeling mild paralysis then the severe one sets in, after which he is sure to die.
Calvin had questioned the leader for a while and wanted to see how far the poison as he thought it to be, will go in torturing the person.
As Adriana warned, there was no water for him, neither was there a morsel of food after the capture.