Poptropica Counterfeit Dragon Head Completly STUCK On Counterfeit Island Poptropica...?

Completly STUCK on Counterfeit Island poptropica...? - poptropica counterfeit dragon head

I had all the parts of the dragon on the island Poptropica forgery and now I'm in the work of the tunnel, what is missing, stuck and no way to get it because it is in the center or something that will be closed overnight. Any tips?