Just as the Northern Expeditionary Force was soaring triumphantly upward... ahem... marching upward at speed to rendezvous with the Alliance and Horde army locked in fierce battle in the fortress's central area, a large-scale battle also broke out higher up in the fortress, near the Frozen Throne.
The overwhelming Blue Dragon Legion suddenly launched an attack on Icecrown Citadel. They had only one target: Sindragosa, the Frost Dragon's nest.
Wyrmrest Temple's massive offensive against the spider kingdom had successfully served as an excellent and genuine smokescreen, causing the Lich King to temporarily overlook the Blue Dragon Legion's highly unusual response, which he had previously suspected.
The Blue Dragon King Malygos flew at the forefront, his enormous body blotting out the sky as his massive eyes revealed deep killing intent and hatred.
"Kill all these desecrated brethren! Bring back their bones! Prove our strength! The Father God's radiance will grant them rest! And Sindragosa... my beloved, she will return to my side!"
On the high platform of the fortress, dozens of Frost Dragons let out piercing howls before spreading their wings and taking to the sky to meet these uninvited guests—their former brethren.
"Malygos! You dare come here! Northrend's icy winds will sweep away your souls!"
A female voice rang across the sky, and then the Blue Dragon Legion saw an exceptionally massive Frost Dragon fly out from the depths of the platform.
"Sindragosa... my beloved... look what the Lich King has turned you into..."
Purple arcane energy flowed around Malygos's two foreclaws as he effortlessly snapped a Frost Dragon's neck, sending its skeletal head flying from its body.
"I... hate the Burning Legion! Hate Neltharion! Hate you! Hate all of Azeroth! Hate every one of you!"
Sindragosa roared out a profoundly anti-social, anti-world declaration.
This former first matriarch of the