Liberated round robin step 4 was called Serendipity. What does that mean? I wasn't sure so I had to think about it for awhile. So I had some house blocks from another project and decided I wanted to use them. First I tried a border. No that wasn't right, so then I laid them on top and decided this was going to be my serendipity.  It is now 31x36 but I am going to keep adding to it.