It would be an interesting challenge to depict the Spiders in a manner faithful to the book, given the plot twist at the end that <rot13>rirelguvat gur uhznaf (naq gur ernqre) unq yrnearq nobhg gurz unq orra guebhtu na haeryvnoyr aneengbe – gur uhzna genafyngbef jub unq "ybpnyvmrq" (uru!) rirelguvat jevggra sebz gur Fcvqref' crefcrpgvir.</rot13>
My instant thought for a solution to this: Fcvqre frpgvbaf nf n phgr navzngrq pnegbba, hagvy arne gur raq jura jr frr perrcl barf eraqrerq nf PT/cenpgvpny rssrpgf/jungrire.