Quinn ran to the beast weapons class. He didn't know how much longer Erin could survive in a transformed state, or if Fex was in danger. What he did know was that Erin needed help.
There was also the fact that their discovery in Duke's office confirmed that there was corruption going on with the military. Quinn had a feeling it was the case, but he only thought that they would at most turn a blind eye to the abuse the low levels experienced, not be active participants in their deaths. He didn't know which military officials were involved, but there was at least one person Quinn trusted.
The man who never looked down on him despite not having an ability.
When recalling the time he told his teacher that he wanted to learn the earth ability, he remembered that his teacher's reaction was peculiar. His tone of voice remained the same, but his facial expression betrayed that he was slightly disappointed.
