Introduction to Appendix 4 This set of interviews and one article forms an appendix relating to a general study of the arrangment of the Chemnitz Agreement between Germany, France, and Britain as signed on April 15, 1997. While the parts played in the arrangement of this agreement by the renegade Black Air agent Peter Wisdom and former Excalibur member Katherine Pryde were peripheral, some mention of their history prior to the meeting is required for completeness. The documents and interviews given here constitute all that could be found describing their movements between their escape from Britain and their arrival in Chemnitz. Tancur Ozbal, Sergeant Security Service, German Federal Police