Rescuing Bill from the clutches of the enemy was a much-waited-for event. 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