"The Pendulum" is a work of fiction set in the world of classical music in the early 2000s, written in the form of the diary of Ina, a young woman who becomes assistant to one of the greatest violinists of the 20th century. After the violent death of the violinists impresario, Ina takes over his production company in Monaco and goes on to produce classical music concerts.

Ina's story provides behind-the-scenes insights into life in todays world of classical music, the portrait of a great Russian artist, expelled from Russia by the Communist regime because of his support for Solzhenitzyn, Shostakovich and Prokofiev, as well as the private and professional life story of a young woman shuttling between Monaco and Nice, Europe and South America.

The plot also depicts Russias Communist past through the artists recollections and brushes with the esoteric world of the impresario, an eccentric person influenced by occult forces.

The style of writing is that of an intimate journal unveiling the thoughts and inner feelings of Ina, but also of the great violinist to whom she is very close.

The novel conveys the genuine artistic and human message of a great personality of our time and raises the eternal questions of love, creativity and the meaning of life.

"The Pendulum" was inspired by the experiences of its author Ana Ilen as assistant to Maestro Mstislav Rostropovich, working for his impresario in Monaco during the years 2001 to 2004.

The novel "The Pendulum" was published to a wide acclaim in Bulgaria in 2011 and presented to the audience by the famous Bulgarian writer and member of the Academy of Science - Anton DONCHEV.

In 2013 the novel was adapter to a screenplay by Ana ILEN and Valentine KACHEV. The screenplay was a finalist at the International Film Festival in Barcelona, Spain in 2014.