Ultraviolet
by R. J. Anderson
Ultraviolet is genre-bending paranormal YA about a 17-year-old girl named Alison whois a synesthete (she hears color, sees sound, etc), a tetrachromat (she can see into the ultraviolet part of the spectrum), and possibly a murderer. Her only hope is a fraud, a liar, and maybe an alien. Or so she says.