So he got to work and quickly. He began working on a potion to reduce the fever and calming the body. After, he would try to give Ash the potion and wait for the effects to kick in to then further examine Ash to see what was wrong. 

Carth could understand that, and it made sense. He stopped looking through the book and looked to Scarlet. "So for what we are possibly seeing here is that Ash is a Guardian due to her powers. That means she is suppose to have a sister right? Do you think she might know something?" Carth looked back to the book that he was searching through that could hopefully give them insight.