The book is based on Ollila's own experiences with the band as well as exclusive interviews with the members, their families and their friends.

The book is remarkable as a rock biography both because Ollila's portrayal is very sensitive to the subjects without sugar-coating their foibles, and because he was granted such full cooperation by a still-active band.

In November 2009, Marcelo Cabuli, Turunen's husband, filed a lawsuit against Ollila and Like Kustannus Oy, the book's original Finnish publisher, for libel.

[1] On December 12, 2011, the Court in the district of Helsinki, Finland dismissed charges of defamation in relation to content of the authoritative book on the Finnish band Nightwish.

The Court ruled that the book does not adversely affect Cabuli's work or his reputation in South America.