Question: Which novel was the opera at which Artyom Melikhov has his first appearance based?

<P0-S0> Wilbur Comics was a comic book published from 1944 to 1965. <P0-S1>  The comic featured the fictional character Wilbur Wilkin, a contemporary of Archie. <P0-S2>  Wilbur Wilkin actually made his first appearance in "Zip Comics" #18, three months before Archie's first appearance. <P0-S3>  Wilbur also made appearances in several other Archie comics, such as "Pep Comics", as a backup feature. <P0-S4>  Of particular note, popular Archie character Katy Keene made her first appearance in "Wilbur Comics" #5. <P0-S5>  This title was published originally under the imprint of MLJ Magazines, which then became Archie comics starting with issue #8. <P0-S6>  After issue #87 (December 1959), the book went on until August 1963's #88. <P0-S7>  After 1 more issue in 1964 and 1 in 1965, the series was canceled with issue #90. <SEP> <P1-S0> War and Peace (Op. 91) (Russian: Война и мир , "Voyna i mir") is an opera in two parts (an Epigraph and 13 scenes), sometimes arranged as five acts, by Sergei Prokofiev to a Russian libretto by the composer and Mira Mendelson, based on the novel "War and Peace" by Leo Tolstoy. <P1-S1>  Although Tolstoy's work is classified as a novel, the 1812 invasion of Russia by the French was based on real-life events, and some real-life people appear as characters in both the novel and the opera, e.g. Prince Mikhail Kutuzov and Napoleon Bonaparte. <SEP> <P2-S0> Artyom Melikhov is a Russian tenor singer who was born in Saint Petersburg. <P2-S1>  He graduated from both the Glinka Choral School and Saint Petersburg Conservatory where he was under guidance from Yelizaveta Kudryavtseva till 2006. <P2-S2>  In 2008 under guidance from Valery Gergiev he played a role of one of the Japanese envoys in "Le Rossignol" opera and during the same year played a soloist role in "Chimes" at the Mariinsky Theatre. <P2-S3>  In 2009 he had his first appearance with Mariinsky Theatre where he played in an opera called "War and Peace". <P2-S4>  That year was followed by such 2010 debuts as the "The Mystery of the Apostle Paul" in which he sang in a role of "Nero" at the Mariinsky Theatre and another "War and Peace" performance, this time at the John F. Kennedy Center for the Performing Arts. <P2-S5>  In 2011 he became the Mariinsky Academy of Young Singers soloist and the same year performed the role of "Ovlur" in an opera called "Prince Igor" following by his appearance in "Dead Souls" and "Ariadne auf Naxos". <P2-S6>  In May 2013 he was "Rienzi" performer at the Saratov Opera under Alexei Stepanyuk's baton and the same year sang at the Carmina Burana opera after which he went on a tour to Naples where he performed at the Teatro di San Carlo. <SEP> <P3-S0> The following is a list of characters that first appeared in the BBC soap opera "EastEnders" in 1985, by order of first appearance. <P3-S1>  They were all introduced by executive producer Julia Smith. <P3-S2>  The first episode of "EastEnders" was broadcast on 19 February 1985, and twenty-three main characters were already created for their first appearance. <P3-S3>  The first character to be seen was Den Watts, followed by Ali Osman and then Arthur Fowler, all of whom find Reg Cox dying in his flat. <P3-S4>  Ethel Skinner, Harold Legg and Pauline Fowler appear, after Den alerts them of Reg's death. <P3-S5>  With Ethel is her pug Willy along with Lou Beale. <P3-S6>  Saeed and Naima Jeffery are seen working in the local shop whilst Angie Watts is seen in The Queen Victoria, Walford's local pub. <P3-S7>  Nick Cotton and Sue Osman are next seen, whilst Pete and Kathy Beale work at the fruit and veg stall and Hassan Osman is seen with his parents in the café. <P3-S8>  Sharon Watts, Ian Beale and Michelle Fowler are next seen and Mark Fowler is seen going into the bookies. <P3-S9>  Lastly, Roly the dog is seen in the pub when a fight breaks out.