Stuck in the Ultimate Maze?!

[rose]

I have a question about Ultimate maze. I have all keys but 2 yellow ones that I couldn't bring with me from the

first

path. Is there a way to get back to the

first

path? As you might understand I know how to get from the first to the

second

path. I have looked at the map but can't find a good

crossing

or any hidden way in the walls.