By Jasmine Allday A Death In Paradise icon made a surprise cameo in Beyond Paradise this evening. As Humphrey Goodman and Martha Lloyd prepare to tie the knot, the pair were given a joint stag and hen do by their friends and colleagues to mark their upcoming wedding. It was organised by Kelby and Margo, who had wanted to transport them back to the island of Saint Marie, where they reunited and rekindled their relationship. It has been years since the pair actually went to Saint Marie but tonight Saint Marie came to them as the pair celebrated their upcoming wedding. Fans were left thrilled whe…