|The following is based on Van Buren and is not canon.|
If the player agrees to help Willem and be the ghouls' ambassador of "good will," either through Measles, Willem himself, or Colonel Green, Willem will ask the PC if he would be interested in taking Measles along so he may experience the outside world and be a ghoul representative/advisor to the PC in case there are questions about the ghouls the PC would not know how to answer. If the player agrees to take Measles, there you go. If not, the offer will stand for as long as the player is friendly with Willem.
Character type completion breakdown
- Combat Boy, Diplomacy Boy, Stealth Boy, Science Boy - Just say yes.