The other girls run away, but the Governess begins sending Zita nightly messages instructing her to bring the spirit 3 things: an eagle feather, a pebble from beside a stream in Wildwood, and the teeth of the Governess' son, Alexei (the teeth are in his entombed mechanical body and were used for bringing him back to life the first time).

Rachel and Elsie and all of the other former orphans of Unthank's Home have taken refuge in a warehouse in the Industrial Wastes, where they are hiding out from Roger Swindon and his stevedores.

PART TWO: After she refuses to eat the Spongiform when the Blighted Tree Caliphs offer it to her, Prue is taken by soldiers and imprisoned on the Crag, an island fortress in the ocean.

The Unadoptables and the Chapeaux Noir assault Titan Tower with explosives while Elsie and several others of the smaller children crawl through the air ducts and free Carol and Martha.

Titan Bradley Wigman shoots and kills Joffrey Unthank (who dies in the arms of his beloved Desdemona) and Roger Swindon is then taken captive by the fleeing orphans.

Rejoined by Rachel and one of the Chapeaux Noir named Nico, they head into the Impassable Wilderness while the Industrial Wastes explode behind them.

PART THREE: A chapter is devoted to telling of an owl who after having not left his own tree for years, decides to construct a model of the Eiffel Tower from a photo on a postcard given to him by a squirrel.

Prue and Seamus are rescued from the Crag by Owl Rex and some of his Avian subjects, who then take them to South Wood, where they find a repentant Zita and Esben the bear.

Nico is overtaken by the Ivy, as is the wooden cell where they have imprisoned Roger Swindon but the rest are rescued and carried to safety at the last moment by Avians being ridden by Brendan and the Wildwood Bandits.

Prue climbs to the top of the destroyed Great Tree and uses her power to pull the Ivy, which is no longer enchanted, back from Portland and the Industrial Wastes, and then gathers it to her and orders it to fold itself into the ground.

The North Wood Mystics gather her up and set out with her in their arms to the Ossuary Tree in Wildwood (again, this journey takes many days).

Alexei decides to stay alive with Zita at his side and help to rule the new land that has been created now that the buildings of South Wood have been torn down by the Ivy.

A mysterious stone house included in one chapter references "The Witch Castle", a now abandoned public bathroom in Forest Park that was partially destroyed by the Columbus Day Storm in 1962.

[4][5] It is commonly used as a resting point by hikers and joggers on the park's Wildwood Trail and has been the subject of innumerable local legends over the years.

[7] Other real locations featured in the book include Pittock Mansion, the St Johns neighborhood, Forest Park and the Willamette River.