"Arubrakan, is this your capital, Azjol-Nerub?"
Looking at the seemingly bottomless cavern before him, Leiluo turned to the giant spider at his side, his eyes full of questions.
"We Nerubians don't have a concept of a capital. We have only one city, Azjol-Nerub. Everything else, we call a settlement.
"This cavern before us is just one of Azjol-Nerub's entrances. But I don't understand, Leiluo. Why do you insist on attacking Azjol-Nerub first? Why don't we just head straight to Icecrown Glacier and kill Arthas? Wouldn't that solve everything?"
"Arubrakan, the relationship between our Horde and the Alliance is both hostile and friendly. We can come together to fight a common enemy for the sake of Azeroth. But once that common enemy is gone, our relationship will grow tense again.
"Arthas was wounded by me in Dragonblight. And when Utgarde fell, the moment Bovar marched toward Icecrown Glacier without stopping, I knew Arthas couldn't die at our hands. If Arthas died at the hands of our Horde, the already fragile Alliance would fall apart in an instant."
"Why?"
Nerubians were indeed intelligent, especially when it came to education, art, and the Arcane. But when it came to understanding people, they were rather out of their depth.
"The Alliance already thinks our Horde is stronger than they are. If we kill Arthas at this moment, with the whole world watching, our Horde's reputation will completely overshadow the Alliance's. There are still many neutral races in this world. When they see how powerful we are, they'll naturally gravitate toward us. And when the Horde and the Alliance go to war in the future, they'll instinctively believe the Alliance is at fault, because our Horde once defeated Arthas and dealt with the Scourge—"
"Then if the Alliance kills Arthas, wouldn't everything be reversed?"
"Exactly.