Avalexi is a succubus living in Magnimar who has inhabited the abandoned shrine of Sarenrae in the Underbridge district. She has gathered to her two main allies—her half-fiend gargoyle son, called the Scarlet Son, and Zadendi, a corrupted priestess of Sarenrae.1 When outside of the shrine, she disguises herself as the son of a minor noble house, calling herself Lev Avai.2 Avalexi is particularly fond of corrupting and sacrificing worshippers of Sarenrae, and offering her such a person is a good way to gain Avalexi's favour.3
Before moving to Magnimar, Avalexi was trapped in a statue for millennia in a cave within the Mushfens. She was finally freed by a tribe of troglodytes on the hunt for treasure; she rewarded them for her release by not killing them. She moved to Magnimar in the hopes of building a cult dedicated to Shax, The Blood Marquis: demon lord of envy, lies and murder. In this endeavour, she hopes to regain the favour of her demon lord.3
Why Avalexi was imprisoned in the Mushfens and why she has such a dedicated hatred of all things Sarenite is not well known.