Tap the pots to move them. Select the brick you want to place the pot on, or tap a well to empty the pot. Up to three emptied pots will be stored in each well; tap the well again to retrieve a pot.

As the rain falls, the pots will begin to break down. Tap a kiln that's fired up to start a new pot, then tap it again to remove the pot when it's done. The rain will destroy your kilns, too, so make sure to protect them.

Just hold out until the clouds break (two minutes) to collect your reward.

And at all costs, don't let any rain fall on the Book!