It is not too late to join the Spriteling mystery shawl KAL and there are 2 ways to join - either via ravelry or the socktopus website. You can search on ravelry patterns for spriteling and there is a spriteling mystery shawl KAL group to go with it. The clues come out fortnightly with the second one due on Friday - it runs until sometime in May.
I have to admit this is quite a challenge until you get going and 'into' the pattern and I have used both the chart and instructions to get going. I haven't quite finished the first clue yet as I was struck down by this horrid bug going around and was too ill to knit anything - I am hardly ever too ill to pick up the needles for something!
I did however manage to cast off my Pi shawl yesterday - pics to follow once it is blocked. The yarn was amazing to work with and I shall be casting on more of this soft and fluffy yummyness once I decide what to make. I have loved this Pi shawl even though it was a bit of an experiment - I added a hearts pattern from another Pi shawl I had seen but had a section of plain knitting in there as well (it would have been better with more hearts). Am off to wind my Royal wedding yarn now as I want to get that started soon as well!