Right.
Astrek leaps down (not gracefully) two tiers at a time. The shaking becomes more palpable and you know you will not be able to follow the same plan. With a running start you leap from the top tier.
Below you the battle is visible as you plummet towards the horde. To your right, from behind the juggernaut you can see a phalanx of ten fiends, cornugan you think, cutting a path towards the juggernaut. Behind them is an eight foot tall mind flayer, wearing a crystal helm similar to the one locked on Drayton. Behind you there is a tremendous crack and you turn your head to see the Heart rise, or rather float stationary, as it's pedestal splinters. You clearly hear "My thanks Knight." before the Heart in its admantium nonagon disappears in a flash.
As you are about to crash into the horde two great hands abruptly, but as gently as possible, arrest your fall. Sir Damon sweeps away half a dozen zombies and sets you down.
The juggernaut's tower has crushed it's rollers into the frozen ground and the lowest level has cracked under the weight of the upper levels.