The temple's architecture was hardly fragile. It radiated with intense magicks, along with some other properties. Some areas seemed more biological than constructed, though it was clearly not living.
There wasn't much to see at the ground level and there were only prayer rooms and living quarters on the second and third floors. Access to higher floors was restricted and warded off against those who were not members of the clergy. A spiraling staircase led down into the sub-levels under the ground floor, which seemed to only hold a catacombs, but much further down, if either of them sneaked around and explored enough, was a vast chamber with a giant black globe of negative energy floating in the center. Black-robed mages stood around it, chanting and channeling spirits through this plane and that of the dead.
At the top level of the temple, Valas met with his generals. With the disappearance of Alexander, the demilich now had to fulfill double roles as both archmage and high priest until a replacement was chosen, which basically made him emperor. He wasn't interested in running the empire though, so he waited anxiously for someone to be chosen as new high priest.
Five generals stood around a large stone table. They were hulking figures covered head to toe in armor, eyes glowing like hot embers beneath their helms, radiating death. They were creations of the Dark Eternal for the sole purpose of leading his armies; they were his version of the dreaded Death Knight.

Unlike the ones created by demon gods, these five did not birth from fallen paladins or dark knights. They were the collective malignant energies and enmity of evil warriors slain by good throughout the ages, and animated inside of suits of armor. They knew only hatred and were masters of war.
"We have struck an alliance with the ((insert name here)) Empire," Valas started with, "They are sure to be a nice addition to the hordes, assuming all their talk is worth anything. The time draws near, generals. Give me a status report on your respective charges."
The general with the horned helmet spoke first. "First Air Assault Division currently has 13,000 undead in formation, with another 2,000 or so in reserve. Vengeance's repairs are complete and her upgrades are finished. After the final test run she will be ready to see action again. We have added another 50 bodies to our crew to cover our losses from the raid in Aggrippina. "
Valas nodded, content with the report.
"Second Air Division is ready to go," said the general with crowned helmet. "We have 12,000 standing ready with another 4,000 in reserve. Cessation's upgrades and maintenance is nearly complete as well. The final protection wards are being put in place as we speak."
"Third Air Division is ready," said the general with the bulbous helmet. "Draconis III's upgrades and maintenance is nearly complete. She will be fully armed and ready to fly before the hour is upon us. Crews will be running drills until time for deployment."
"Very good," Valas said. "What about the latest addition to the horde? How many have been enhanced so far?"
"1,200 or so, my lord."
Valas nodded again, then turned his jeweled gaze to the general with the wedge-shaped-horned helmet.
"Fourth Assault Division is completing training exercises and our mages are building more constructs. We currently have more than 15,000 bodies, including artillery and armored support."
Finally, the last general, with the helmet that had two points on the sides. "Fifth Assault Division is ready to go. We have 12,000 standing by and 3,000 on reserve, including armor and artillery."
"Good, good," Valas remarked. "The tournament is nearing its end, but we still have plenty of time. There has been a slight change in plans due to our new alliance. General Vangun, you will take Vengeance and support Xanathos' forces on their attack against Lament. Do not send ground forces unless it's needed. Generals Faul and Grahf, you will deploy with the Draconis III and Cessation, respectively, and carry out attacks against Durem and Aekea with the First and Third. Chaszmyr will take his force and fortify Barton in case any heroes try to take it back."
"Understood."
"Another thing," Valas added, "If there is any sign of treachery, you will contact me immediately."
The generals nodded unquestioningly.
"That is all. Carry on until the time arrives. Dismissed."
They blinked out at once, leaving the demilich alone in the room.