Oooops.
Turns out that the Aquifer was, in fact, two layers thick. Fortunately, I was super-paranoid (as usual) and had already set up a flood control wall to isolate the work area before I started mining, so only the work area was flooded. The miner escaped unscathed.
Turns out that the Aquifer was, in fact, two layers thick. Fortunately, I was super-paranoid (as usual) and had already set up a flood control wall to isolate the work area before I started mining, so only the work area was flooded. The miner escaped unscathed.