The second ring, spinning faster right above the writing arm, resembled a broad belt of tiny black stones grouped close together, but these stones, as they bumped into one another, gave with a sponginess that made her think of soft tadpoles and of the creatures that had rained from the sky on the way to the island. What function these entities performed, whether they were part of the Crawler’s anatomy or a symbiotic species, she could not fathom. All she knew was that both rings were in their way reassuringly corporeal.