Planning to Jump Again

"This is weird…" Eldred thought to himself as he flew into the deeper parts of the Palace. He was searching for any signs of those damned Titans, anyone, the guards, the King, whoever he could find. But to his dismay, there was not a living soul in that large Palace.

"There must be bunkers somewhere around here. I should look for it," Eldred whispered to himself. He then began looking for possible hidden doors or buttons that could open the doors of the bunkers.

After searching around for around ten minutes, he finally found a secret door. He looked for a button or anything that could open that door. However, he could not find anything as such. "Maybe it just opens from the inside," he concluded. 

And then he readied himself to forcefully break that door open. The door was made out of that same material that was as strong as Astrostial. But that didn't make any difference for Eldred.