In 'Lisey's Story', what is the name of the alternate world Lisey visits?

In Lisey's Story, the alternate world Lisey visits is called Boo'ya Moon. It is a strange parallel realm connected to the memories and supernatural abilities of Lisey's late husband, novelist Scott Landon.

Scott discovers Boo'ya Moon as a boy and later shares it with Lisey. The place offers remarkable healing through its pool, but it is not a safe fantasy refuge. Its landscape includes forests, threatening phenomena, and a terrifying entity known as the Long Boy. The world also becomes tied to Scott's family history, his childhood trauma, and the mysterious “bool hunts” that shape the novel's central scavenger hunt.

Lisey has suppressed memories of Boo'ya Moon because of the painful experiences surrounding Scott and her sister Amanda. As the story progresses, she learns that she possesses her own ability to cross over. She uses that ability to reach Amanda during her catatonia and later to confront the dangerous stalker Zack McCool. Boo'ya Moon is therefore both a literal alternate world within the novel and a symbolic landscape where grief, memory, love, and trauma become physically real.