And how about the detail "Karlee Batz"?
SELECT event_id FROM EVENTS EXCEPT SELECT T1.event_id FROM Participants_in_Events AS T1 JOIN Participants AS T2 ON T1.Participant_ID  =  T2.Participant_ID WHERE Participant_Details  =  'Karlee Batz'
detail 'Karlee Batz' refers to excluding events with participant 'Karlee Batz';