Feeling desperate, Bob still kept pushing the fuel ignition systems, hoping that the ship would start moving in the next second.
“I can feel that they are closing! Hurry up, Bob!” Sandra shouted.
“I’m trying! I’m trying!” Bob answered impatiently.
Heavy footsteps were moving toward them gradually. Sandra and Bob’s hearts were twisted like towels. As they could almost tell the monsters are just standing by the door, to Bob and Sandra’s surprise, the door was not crashed rudely, but knocked in gentle.
Bob and Sandra looked at each other silently. They wondered the same thing, “What’s going on? Where are those terrifying monsters?” The sound of knocking interrupted their thinking. Bob walked toward the door hesitatingly, putting his hand on the button, which may lead to death, or a surprising result.
Sandra caught Bob’s arm, frowning and shaking head.
The door was knocked again.
Overwhelmed with curiosity, Bob pushed the button, and the door was opened.