This is book number 5 in the Circle of Three series.
On the eve of fair midsummer,
Longest day and shortest night,
Faerie magic, fill these woods,
With joyous song and laughter bright.
Midsummer's eve finds Kate, Annie, and Cooper celebrating the most joyous sabbat with nature -- and a few not unwelcome strangers. On a night when identities and emotions become tangled and confused under the strange solstice sky, one will be led astray.