Allen was very careful about that Boss monster. Well you can say that he finally met the Boss monster after so many days. Most likely this would be his 10th day inside of the Dungeon when he finally meets the Boss monster. The thing was that the Boss monster was already much more powerful compared to any of those normal Monsters and not only that he also has bloodline's power boost and also the thing was that he has berserker technique.
Even though he was unable to tell the details even after checking the status of that Monsters, one thing was sure: mostly when the Boss monster will lose almost all of his health he will use that technique to use as his last Trump card. With this naturally The Monster will become more powerful and more dangerous and because of this Allen was very careful about that monster.
