West and East war

It happened thousands of years ago. The war between Great Kourend and The Arc made conflicts of the Dragonkin Queen and Zephinia, the Mahjarrat Sorceress waged in war in distant places of the West and the East. The power of the Dragonkin Queen held the Staff of Armadyl, while Mahjarrat Witch Sorceress used her time compression to distort the history of Gielinor. There were few Mahjarrat warriors who were on different sides. Neither was Xarkom on both sides nor his Icyene wife. They had to take her to south part of Gielinor for safekeeping.

The aftermath was that the rift became apparent after war.

Sliske, Bilrach and any other Mahjarrat did not attend and participate in this war.

Sometime after Twisted and Shattered Time Quest, the rift became apparent after the coming of Queen of Eternal Chaos and All monsters and deaths of V and Guthix.

Trivia

 * It's an ironic twist that maps and worlds OSRS and RS3 make a crossover in fanfiction of Runescape. They made war in both sides concerning the races (The Lizardmen, Sirens, Tengu, Dragonkin, Mahjarrat) in this fanfiction.