The Origami Forum

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ive been working on the "pacific giant red sea urchin" and im stuck on step 29.....
if anyone has done this before or can help, please do i just cant figure out how to do it...

during the move (one flap from right to left) you've got to make a spread sink on the small flap that's beetwen the flap you move and the next one

Thanks!

I have also problems on the same step.
It would be good if there were some photos or video.
I fear that my figure is different, where is the small flap?
Could you help me please.