1-8
: 1s cross RH, cast (2s step up); 1s dance 1/2 Fig 8 (1M up, 1L down, LSh
  round 3rd corner) to face 1st corner
9-16
: 1s dance DoSiDo with 1st corner; 1s dance 1/2 RSh diagonal reel of 4
  with 1st corners, 1s pull back RSh to face 4th corner
17-24
: 1s dance DoSiDo with 4th corner; 1s dance 1/2 RSh diagonal reel of 4
  with 4th corners, 1s pull back RSh to end BtoB in centre facing own
  sides in Double Triangles position
25-32
: "Petronella Triangles":

: 1s dance Double Triangle figure ending with Petronella turn to 2nd place
  own side **while** 2s+3s set, Petronella turn 1 place, set,
  Petronella 1 place. 2 1 3