Erik and June crouched behind the foliage. The secret entrance was in front of them. June, having taken the form of a tiny fly, perched on a nearby twig to observe the situation and give Erik feedback about the surroundings and to inform him of whatever was going on and that he couldn't see.
Erik said.
Erik activated his Phantom Veil brain crystal power and turned invisible. Despite the system's reassurance about the fact he wouldn't be seen, he wasn't taking any chances and used the bushes and shadows as additional cover.
As he approached the entrance, there were two major concerns on his mind. The first was how to open the door.