think up — to have a conscious mind, to some extent of reasoning, remembering experiences, making rational decisions, etc.
throw together — to propel or cast in any way, especially to project or propel from the hand by a sudden forward motion or straightening of the arm and wrist: to throw a ball.
trump up — Cards. any playing card of a suit that for the time outranks the other suits, such a card being able to take any card of another suit. Often, trumps. (used with a singular verb) the suit itself.
noun hatch
doorway — the passage or opening into a building, room, etc., commonly closed and opened by a door; portal.
access — If you have access to a building or other place, you are able or allowed to go into it.
