Otherwise

Dreamer's loud voice resounded inside the whole brown house and his scream did the work.

"I am here." A hoarse voice came as a reply.

Dreamer jerked his head in all directions but he saw no one.

"Where?" He asked.

"There is only one room in this house and that's in front of you." The voice said.

Dreamer looked straight in the front and squinted his eyes.

"Is that the door?"

In front of him, he only saw a black door knob. If not for that knob, Dreamer would have never been able to find the door.

Why? Because the door was also brown in color. It matched perfectly with the house, making it appear as a simple wall.

"Yes. That is the door." The voice spoke.

Dreamer sighed and walked towards it.

He arrived in front of the door and just opened it.

"Pardon the intrusionnn? What the hell?"

THUK!

Dreamer instantly closed the door again and moved a few steps back.