No one has posted that they've had issues with this goal. Did you complete the goal that rewards the Spell of Flight? It's only 1 of the items you need to expand. Check the goals of part 2 on the first page of this thread and let me know which goal your book says compared to my post...
Originally Posted by tab1044
The expansion plot will say you need it if you click on it to expand, but that's not all you need. You will expand to the plot in Goal 5:
* Journey further into the Island of Audra 0/1 GO | Expansion requirements: W20 - 1 Spell of Flight, 2400 RP, 300,000 coins, 2 windchaser lanterns, 2 expansion permits