Laertes returns with two buckets, one partway full of mortar mix, the other somewhat less full of water. Lancelot will be note that both buckets have lines marked on the inside, and they're filled up approximately to the lines--Laertes has figured out the proportions he likes, and ensured that he never has to measure them out again. "Bring thou that little tub," says Laertes, pointing to small kiddie pool lying off to one side. "This is mortar mix; it's made of lime, cement, and sand, well combined. We'll mix it with this water until it becomes thick and wet, and then spread it unto the lines where thou seest the twine staked. Then we'll lay bricks atop it, in the herringbone pattern that Sagramore and I have begun."