In Cincinnatus’s cell there is a spider, official friend of the jailed:
Работая лапами, спустился на нитке паук с потолка, - официальный друг заключённых.
Feet working, a spider — official friend of the jailed — lowered itself on a thread from the ceiling. (Chapter One)
At the end of Byron’s poem The Prisoner of Chillon the hero says that he had made friendship with spiders: