Congratulation !!! 
I found 3 things which could be correct by the following way:
TWO YEARS AFTER THE 1ST ADVENTURE
YOU MET THE SCIENTIST MR BROWN
MARDIOR THE GHOST
Ok, yes... Mardior has a ghost appearance.
As I have enough place on the very first sentence I have fixed it as this:
"TWO YEARS AFTER THE FIRST ADVENTURE
YOU MET AGAIN SCIENTIST MR BROWN,
THE TIME MACHINE CREATOR"
