Pacific Giant Red Sea Urchin

[Evilameba]

http://home.no.net/origami/
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...

[Kafar]

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

[Evilameba]

Thanks!

[Fatih]

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.