Shakespeare purists will be quick to point out that the correct quotation from Macbeth is actually “Double, double toil and trouble; Fire burn, and caldron bubble”.Bubble/double – either way, my magma piece for the Kilauea colorplay challenge has been problematic despite its promising beginning. I am resigned that it will not be completed in time for the grand reveal on 1 May (US time). Fortunately, I have another couple of contenders up my sleeve. Be sure to check out the Twelve by Twelve blog later in the weekend.