Jake wasn't sure if it was the right place to visit first, but now that they were out front, they could afford to take a look. As long as he didn't have Aether to spend it wouldn't bother him.
"How do I get in?" Jake asked in his mind.
[ Just like the other cubes. By walking through it. If you're in doubt, simple physical contact should give you the answer.] Xi answered calmly.
'Impossible, I've already touched the symbols on the wall.' Jake replied, frowning confusedly.
[But you weren't trying to get in. Try again with the intention of entering the building.]
'Okay, I'll test that. '
Following Xi's advice, he put his hand against the carbon grey surface again and this time a notification from the System asked him if he wished to enter. For once and to his great satisfaction no Aether was charged.