Looking for something different to do today in Chattanooga?

Looking for something different to do today? Check out these suggestions.

AUTHOR VISITS Chris Grabenstein, author of the Haunted Mystery series, signs autographs and answers questions about his career as a middle-grades novelist, improv actor and writer for television at 6:30 p.m. at the Northgate Branch of the Chattanooga Public Library in Hixson. Suitable for grades 3 and up. 757-5314.

BASEBALL Chattanooga Lookouts vs. Montgomery Biscuits at 7:15 p.m. at AT&T Field, 201 Power Alley. Promotion: Finish a Winner Faith & Family Night. General admission, $5 and $3; box seats, $9 and $6. 267-4849, www.lookouts.com.

ROCK CONCERT Coheed & Cambria, featuring Moving Mountains and Pianos Become the Teeth, at 8 p.m. Tickets $27 at the door, plus $3 fee for ages 18-20. 266-4323, www.track2.co.

ORGAN CONCERT Chattanooga Music Club features Dr. Robert Delcamp on Austin pipe organ and the musicians of the SCO Youth Orchestras' Symphony Orchestra in concert at 7 p.m. at Memorial Auditorium, 399 McCallie Ave. Free but donations accepted for organ maintenance.

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