The below description is taken from LEGO.com.
“Vould you like to meet my friends? I do hope you’re not too ticklish!”
Some vampires are fond of bats or rats, but the Spider Lady just adores spiders. She uses them in all of her home decorations, and even weaves her own gowns out of purest spider silk (a very fine thread, but a little sticky). She keeps a large number of pet spiders around her castle, but her favorite is a large red specimen that she calls Baron von Skitters.
Given her love of all things arachnid, it may be a little surprising to learn that the Spider Lady has become rather sweet on the Fly Monster. There’s just something about him that compels her to ask him over for tea…and she doesn’t understand why he keeps running away whenever she invites him to step into her parlor for a bite!