Heavy footfalls thumped up the staircase now, that same terrible buzzing noise reaching the parties ears with every step up their new adversaries took. Crunching bone and a howl of rage and hunger warned the insectoids had found their vanquished comrades. Pounding at the door renewed with newfound zeal as the insects clawed and scraped on the metal doorway and the surrounding walls.
Perhaps 5 minutes or so and the creatures would overpower the doorway entirely.

[b]FROM ABOVE, A VOICE IS HEARD CALLING.[/b]


"Attention escapees. Wards in my personal chamber have been activated, along with the defensive spells painstakingly put into defending the office you now infest." The last word was spat out like poison. "If you survive the other infestation no doubt at the door, make your way down the stairwell to floor 25 and join the surviving guardsmen and repel these disgusting creatures."

The Wardens communication spell lingered in the air a moment, dapening the outside world so he could be heard, and spoke up one last time before the spell winked out.

"Good Luck, mercs."

The spell faded out as the door shuddered at its hinges, once, twice, the third hird was enough. Weakened by the sudden heat and cold the metal securing the door had warped and finally gave way as several creatures resembling men and women with long insect features and claws scrambled over each other the enter.
Four more watched from the back as their wings twitched.

(Be careful how many you kill at once.)