Easy Street mystery quilt

Okay - so I've just figured out that we are only sewing together into some sort of block are the black on white constant, the blues and purples - and the grey. The greens are just being cut into squares or triangles and not attached to anything. Everyone else probably noticed this already - but I just noticed it. So, Bonnie, what's up??? This is getting very interesting - but I notice that she's winding us up for a great finish. I'm really glad I decided to try and do this!