*Slip step throughout*    

1–
: Join NH to form a chain from 1W round to 1M, 1M+2M make arch, and 1W leading, the chain dance through the arch, to places
9–
: Repeat, 1W+2W making the arch, and 1M leading the chain, to places
17–
: 1c BHJ slip down far (2c+3c+4c up) ; 1c slip up to 4pl (2,3,4,1)
25–
: Circle8 and back (2,3,4,1)