Mount Hyjal and Illidan's Gift

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Illidan creates a new Well of Eternity on the peaks of Mount Hyjal believing himself to have made a gift for future generations. For his crimes, he was sentenced to life imprisonment underground under the watch of Maiev Shadowsong and her wardens. Fearful of the Legion's return due to the new well, Malfurion Stormrage asked the Dragon Aspects for aid. Together the druids, Alexstrasza, Ysera, and Nozdormu created Nordrassil, the Tree of Eternity. With it, the Kaldorei became immortal and the powers of arcane magic weakened.

The few night elves that survived the horrific explosion rallied together on crudely made rafts and slowly made their way to the only landmass in sight. Somehow, by the grace of Elune, Malfurion, Tyrande, and Cenarius had survived the Great Sundering. The weary heroes agreed to lead their fellow survivors and establish a new home for their people. As they journeyed in silence, they surveyed the wreckage of their world and realized that their passions had wrought the destruction all around them. Though Sargeras and his Legion had been ripped from the world by the Well's destruction, Malfurion and his companions were left to ponder the terrible cost of victory.   There were many Highborne who did survive the cataclysm unscathed. They made their way to the shores of the new land along with the other night elves. Though Malfurion mistrusted the Highborne's motivations, he was satisfied that they could cause no real mischief without the Well's energies.   As the weary mass of night elves landed upon the shores of the new land, they found that the holy mountain, Hyjal, had survived the catastrophe. Seeking to establish a new home for themselves, Malfurion and the night elves climbed the slopes of Hyjal and reached its windswept summit. As they descended into the wooded bowl, nestled between the mountain's enormous peaks, they found a small, tranquil lake. To their horror, they found that the lake's waters had been fouled by magic.   Illidan, having survived the Sundering as well, had reached Hyjal summit long before Malfurion and the night elves. In his mad bid to maintain the flows of magic in the world, Illidan had poured his vials, which contained the precious waters from the Well of Eternity, into the mountain lake. The Well's potent energies quickly ignited and coalesced into a new Well of Eternity. The exultant Illidan, believing that the new Well was a gift to future generations, was shocked when Malfurion hunted him down. Malfurion explained to his brother that magic was innately chaotic and that its use would inevitably lead to widespread corruption and strife. Still, Illidan refused to relinquish his magical powers.   Knowing full well where Illidan's ruthless schemes would eventually lead, Malfurion decided to deal with his power-crazed brother once and for all. With Cenarius' help, Malfurion sealed Illidan within a vast underground barrow prison, where he would remain chained and powerless until the end of time. To ensure his brother's containment, Malfurion empowered the young warden, Maiev Shadowsong, to be Illidan's personal jailor.