Stick your hand in the sand and I'll find you

On the one hand, I am on day two of a lancing headache and a concomitant amount of sleep. On the other, it has been raining all afternoon as though it plans to keep on doing it, my mother now has six monarchs in chrysalis and eight more caterpillars busily eating their way through the latest milkweed, a map has been found to the Drowned Hundred, and the sonification of a black hole sounds like whalesong by Delia Derbyshire.