Early Lens

It is possible to get the Magnifying Lens without completing the trading sequence by using Air Climbing.

1. Perform an Air Climb on the ladder near the mermaid statue.
2. Move up-left near the tree and throw the rooster to land on the ledge.
3. With very careful movement, stay inside the middle of the ledge and make your way around to the mermaid statue.
4. Walk off the ledge from a corner tile and quickly walk into the mermaid statue to go down the stairs hidden beneath.