Though Serena brushed past the time that she and the others like her had swept through the people involved in the experiment, it was no doubt a brutal and gory time for her. Far more than even what very had experienced since becoming a mercenary.
Obviously, she did not want to burden Avery with the details, and perhaps she was afraid that his opinion of her would lessen if he found out exactly what horrible things she and her companions did to earn their freedom.
'But I'd never think any less of you mom. You've been carrying such an enormous burden with you the entire time even if you'd forgotten it until recently.'
Avery did not voice his thoughts because he felt that there was no need to.
Instead, he leaned in and gave his mother another hug. After recounting her time breaking free from the clutches that kept ahold of her through her entire life, it was easy to see how shaken up she was. No matter how hard she tried to hide it.
