Erik (The Phantom of the Opera)
Kay's Phantom
For the most part, Kay's novel stays in context with Erik's life history as laid down by Leroux. However, Kay (as explained in her Author's Note) changes and shapes the character to match her own vision, influenced by other adaptations besides the original. In addition, the ending/resolution is quite different from Leroux's. The story follows Erik through his entire life, starting with the night of his birth, and is told from different viewpoints) throughout the novel (Erik's mother, Erik, Nadir/the Persian, Christine, and Raoul). Kay places the highest priority on portraying romantic aspects of Erik's life.
Yeston and Kopit's Phantom
The theatrical team of Maury Yeston (Music and Lyrics) and Arthur Kopit (Book) created a musical based on the novel, Phantom), which investors backed out of after Webber's version became a huge hit. In this version, Erik has spent his entire life living beneath the Opera. Over the years, he became possessive of the Opera, and the creative driving force for the company. No artistic decision is made without Gerard Carriere seeking his approval.
Yeston and Kopit's Phantom
He offers to teach Christine Daaé to sing after hearing her working in the costume shop, and falls in love with her.