You have learned to hide the signs of your undeath.
Benefit: You lose the shadowless racial trait. Additionally, you detect as your actual alignment when subjected to the detect evil spell or similar abilities (unless you have another ability that would alter how you are detected), and Knowledge (religion) checks made to identify you as undead or discern your vampiric nature suffer a -4 penalty.
Normal: Undead always detect as evil when subjected to the detect evil spell.
Lords of the Night, © 2018, Dreamscarred Press, LLC; Author: Written by Anthony S. Altovilla and Patrick C., based on material by Owen K.C. Stephens