Which of the following titles is part of the "Celestial Strings" series written by Felix Grünbaum?
Mirror of Shadows Chasing Echoes Piano Rain Echo of Sunlight
Which of the following titles is part of the "Celestial Strings" series written by Felix Grünbaum?
A. Mirror of Shadows
B. Chasing Echoes
C. Piano Rain
D. Echo of Sunlight
Answer: D. Echo of Sunlight