MacGregor quickly moved his family back to London, where the furore following the Poyais survivors' return had died down. In the midst of a serious economic downturn, some investors had subscribed to the £300,000 Poyais loan issued by Thomas Jenkins & Company—apparently believing the assertion of the Cazique's publicists that the previous loans had defaulted only because of embezzlement by one of his agents. MacGregor was arrested soon after his arrival back in Britain, and held at Tothill Fields Bridewell in Westminster for about a week before being released without charge. He initiated a new, less ornate version of the Poyais scheme, describing himself simply as the "Cacique of the Republic of Poyais". The new Poyaisian office at 23 Threadneedle Street made none of the claims to diplomatic status the old Poyaisian legation at Dowgate Hill had done.