Requirement: Character creation, or with GM permission (see Forbidden Lore)
Through accident, proscribed research, or by order of your Patron, you have gained access to unsanctioned information. Each time you take this Talent, you gain access to one of the following Specialisations. You may make Tests related to your chosen Specialisation and purchase Advances in the Specialisation.
The GM is the arbiter of whether or not you can take the Forbidden Knowledge Talent. Keep in mind that possessing such expressly disallowed information effectively marks you for execution by the Inquisition, should they find out. In rare circumstances, you might be taught forbidden knowledge by your Patron, if they have the knowledge themselves and they place great trust in you. Some unlucky individuals encounter Forbidden Knowledge during particularly perilous parts of their lives, such as encountering a tainted artefact or extensive spying on a xenos foe. In either of these cases, or any other in which your GM agrees you are justified in taking this Talent, the expenditure of XP represents your efforts to comprehend and internalise such reprehensible thoughts.