Finally we'd get to see their mysterious base,the hub of their secret operation. I'd been anticipating this all the way through. Sadly, all we get is boat tied up to a jetty, where Bill is being held-along with Horace Tipperlong, who we've always known is really an ornithologist, not a bad guy in disguise. I think Tipperlong was sort of shoehorned into the story as an easy way would have been far more exciting if the children had stolen a boat from real bad guy