1-8
: 1s+3s dance 1/2 R&L, chase anticlockwise back to places as 2s+4s Adv+Ret
9-16
: 2s+4s repeat with 1s+3s Adv+Ret
17-24
: All set, Petronella-in-tandem to next place to end BtoB with partner
  (facing corner), set to corner & turn 2H. 2 3 4 1
25-32
: All circle 8H round & back