Midwinter celebration is coming. Primrose and Wilfred are assigned to recite the Midwinter Poem, and they discover a secret staircase concealed in the attic and many old rooms within. They find stumble down a secret tunnel making it in time for the Midwinter celebration, but they keep the old rooms a secret.

Wilfred joins Mr. Apple and the Weavers to the High Hills. Mr. Apple and Wilfred do some exploring, getting lost and stuck up ridges, but Wilfred has the essential equipment. Primrose and the Weavers search for them, but Wilfred and Mr. Apple reach them by raft.

Wilfred and Primrose are going with Dusty and Poppy on an expedition to the sea to gather salt at Seagull Rock. After the journey they meet Persley and his family. When a storm approaches Primrose rescues Shrimp. When the Storm passes the salt is packed and ready to go.