{{explanation}}
3s & 4s start on opp sides

1-8
: 1s+2s also 3s+4s dance double Fig of 8 (2s & 3s cast to start)
9-16
: 1s+4s dance in (2s & 3s step to ends), turning other partner RH to face
  out in prom hold, dance out & round to right to face 2L/3L
17-24
: 1M & 4M with 'new' partners dance LSh reel of 3 across & end in centre
  facing own partner
25-32
: 1s+4s join partner in prom hold, dance out round to left, dance in ends
  to meet in centre & dance 1/2 RH across, 1s & 4s cross RH to end 2 4
  (1) (3)