premise: If you determine that you do not wish to proceed with a Transaction or your evaluation thereof, you will promptly advise the Company and Stone Key in writing of that decision.  In that case, or in the event that  (i) a Transaction is not consummated by you or  (ii) at any time the Company so requests, you will promptly  (a) deliver to the Company all of the Evaluation Material, including all copies, reproductions, summaries, analyses or extracts thereof or based thereon in your possession or in the possession of any of your Representatives or (b) destroy all Evaluation Material in your possession or in the possession of any of your Representatives (such destruction to be certified by you in writing to the Company). 