The thing about Anti-Magic Fields? They blocked external magic from being created by breaking up the existence converted and preventing any existence converting. This did not include internal magic as the basic anti-magic technology did not have the capability to penetrate passed the skin. A fact the once commonly known race known as the Aralangs had seen and adapted to with their IAM Fields. But no one had seen hide nor hair of the race for years now, and when they had been around they very rarely had shared such technology, having been known to keep most of their technology to themselves.
Now, both Aislin and Erath had no idea of such a thing, nor did they even know what an AM Field was passed the basics. That it was a field, that it was technology, and that it disabled their magic and was used by many empires. They had come across them in their pirate days, and faced them in battle at times. But the mechanics were something you would find very few Sages to know.
Despite this, however, their internal magic was not weak. Gryphon's may not have possessed the rapid healing of the Phoenix Sages, or the immunity of other Sage races, but this didn't make them weak. They were a strong, sturdy race and their magic was not to be belittled. No magic was. In situations of survival, for most magic users, their magic had a mind of its own. Where Aislin and Erath's knowledge of anti-magic technology failed, their magic picked up to protect them in their ignorance.
When the effects of the MDD field would start to pull apart their very molecular structure, their internal magic would commit itself to the opposite and exert a more powerful pull on keeping them together. This would result in an internal battle which in the end would only be reliable on who's source of power was greater. On one hand, Sages lived magic, they breathed it, they were one with it and could possess quite a large quantity before they would drain out. But on the other hand, due to the effects of the AM-Field on their external magic, a Sage would be unable to convert more existence to magic for when they did eventually start to run out. Which limited them to what they had internally.
In then end, it came down to this. Two Gryphon Sages of extraordinary talent in magic or a piece of technology which required external resources to function or run properly?
Erath was the first to give in, due to the reaction of the internal magic fighting the MDD field, the both of them were feeling nauseated, a tightness within themselves, and a slight pain rippling through them. For Erath this was too much, she was one of impulse, of action without thinking. But when it came to actual danger and damage, she could only take so much. Falling to her knees, Erath cluched her sides and gasped for breath.
While at the same time, Aislin was the more stubborn and strong willed. She felt the pain and the overbearing sickness. But at the same time she could feel her magic doing it's hardest. If they were to be killed, so be it. She had so far failed her people, followed the wrong path, and for it, been abandoned by her kind. Aislin had done what she did not want to do, and that was to follow in Tremor's example and fail in being a leader to the rest of her race. Now she had been captured and given a choice to either obey or by the feel of things die. For Aislin, if her magic gave out, this would mean death.
Where she had failed her people, she would not fail the pride of her race. She was a Gryphon, a loyal, yet independent and prideful race. She would not submit to a simple threat by captors but would instead look them in the eye and hold out for as long as she could.