CAMDEN — Camden Opera House’s occasional series The Blue Café returns for a midweek evening performance by 40 Thieves, Wednesday, April 16, 7:30 p.m., in the venue’s intimate third-floor listening room. 

 40 Thieves features Maine songwriter Travis Cyr, accompanied by Laura Bagley.

"An authentic, earthy and original cosmic train ride through the heart and mind, 40 Thieves offers an exciting, professional mix full of gentle harmonies, vivid poetic lyrics, and intricate, percussive guitar playing," said COH, in a news release. "The evening promises an all-encompassing blend of the duo’s best original songs, along with other select works from classic songwriters and traditional numbers that continue to stand the test of time and relevance."

Doors will open 7 p.m. to the opera house’s street-level elevator lobby, 29 Elm St. Attendees will take the elevator to the third floor, whose windows will be outlined with blue rope lights for the evening. The listening room seats around 50, with more room in the adjacent lounge.

There is no admission charge for The Blue Café; donations for the sponsoring Community Arts Fund are welcomed.

For more information on this and other upcoming events, visit camdenoperahouse.com.