Well, it was a good run. After 10 years, three very good albums, and a whole lot of feverishly intense live shows, the Toronto duo Crystal Castles have broken up. This morning, singer Alice Glass announced her departure from the group, citing “a multitude of reasons both personal and professional” and making overtures about starting a career as a solo artist. The announcement comes as a surprise, since we’d heard nothing about unrest within the group. They’d risen from feral strobe-lit small-club shows to festival stages. The duo played their final show in Mexico City almost exactly a year ago, and I sincerely hope you got a chance to see them live. Below, read Glass’ Twitter announcement.

I am leaving Crystal Castles.

— ALICE GLASS (@ALICEGLASS) October 8, 2014

My art and my self-expression in any form has always been an attempt towards sincerity, honesty, and empathy for others.

— ALICE GLASS (@ALICEGLASS) October 8, 2014

For a multitude of reasons both professional and personal I no longer feel that this is possible within CC.

— ALICE GLASS (@ALICEGLASS) October 8, 2014

Although this is the end of the band, I hope my fans will embrace me as a solo artist in the same way they have embraced Crystal Castles.

— ALICE GLASS (@ALICEGLASS) October 8, 2014

There hasn’t yet been any word from her Crystal Castles bandmate Ethan Kath, but it’s hard to imagine him continuing under the Crystal Castles name without Glass.

UPDATE: As for whether the band will continue without Glass, Crystal Castles’ manager tells NME, “There will be twists and turns ahead for Crystal Castles, I wouldn’t bury the dead just yet!”