There has to be a way in. I know if we work together, we can find it.
I think you might be more right than you realize. I can't believe I didn't see it before. Doesn't that symbol look familiar to you? It's the El and Zod sigils superimposed on each other. I think our famiies put this vault here. Raika... Raika said that because I'm an El, I have the power to destroy everything.
And the power to open the vault.