After killing Osiris, Seth shut Isis in prison, from where she escaped; seven scorpions joined her.
In the Mettermich stele, dated around 370 BC, Isis talks about her girlfriends.
“The two scorpions Tefen and Befen were behind me; Mestet and Mestetef were each at my sides; Thetet and Matet preceded me to prepare the way for me”.
These guardian goddesses punished the woman who refused to give Isis lodging, setting her house on fire, nevertheless, Isis, upset by the woman’s desperation, made it rain, putting out the fire.
At this point, the woman recognized her as a goddess and decided to help her. Isis, sometimes was called the “scorpion of Behdet” mostly together with Horus of Edfu. Selkit (or Selqet or Serket) was another scorpion goddess near Isis.
 In one of her representations, she’s seen as a woman-sphinx with the body of a scorpion, a curved tail above her body and her head crowned with horns and Isis’s lunar disk.
Isis-Selkit goddess is an extremely protective aspect of the goddess, but under these features she has a quite irascible nature.