Unseen

"Consider," said the spider, climbing up on the doorjamb so it could look down on us. "A lot of people have some quite dangerous creatures in their homes without even knowing. Scorpions, black widows, brown recluses. They hide in dark corners and wait. Nobody's bothered; they keep themselves to themselves. You see?" "I follow you," I said, glancing at the web that still blocked the front door. We could push past it, but it would cling and tangle us. "But I don't see your point." "What might happen - and this is hypothetical - but what might happen if that forbearance were to suddenly... end?"