This will allow you to start the inquisition by saying "mission" to Henricus, checked in real that it should work with both "mission" and "join", transcripts from real:
15:08 Player [23]: mission
15:08 Henricus: Do you want to join the inquisition?
15:08 Player [23]: join
15:08 Henricus: Do you want to join the inquisition?
This will allow you to start the inquisition by saying "mission" to Henricus, checked in real that it should work with both "mission" and "join", transcripts from real: