Just like Neil and his uncle who were able to escape from the king's men, a few other rebels were able to escape as well, and they secretly formed a dark guild with the goal of ending not only the elf queen, but also the nobles, ministers, and finally the king of the human kingdom.
'I'll make sure I have my revenge on all of them, starting with the elf queen.'
'She destroyed my family and I'm definitely going to ruin hers as well.'
'It's a shame the elf prince is a rank ten mage.'
'If he wasn't a rank ten mage, it would have made things a lot easier for me.'
'However, since he's a Rank ten mage, it means I will have to settle on a different approach.'
'I'm a rank seven mage so there's no way I'll be able to win against him in a fight, and I'm not stupid enough to try to ambush him in his sleep or anything like that.'
'Unlike me, he's a transcendent being and this makes it impossible for me to win against him in combat.'