An independent book shop specializing in mystery and suspense novels is closing after a seven-year run in Carmel. The Mystery Company in the Arts & Design District plans to host a farewell party Jan. 30, and close for good a few days later. The shop, which is owned by husband-and-wife team Jim Huang and Jennie G. Jacobson, will offer $10 off any purchase of $40 or more and $30 off $100 or more. Huang has been selling mystery books for 22 years, in Boston, Kalamazoo and Carmel. The couple is moving to Ohio, where he'll manage the Kenyon College bookstore. "It's hard to express how disappointed we are that things didn't work out at The Mystery Company, and how much we'll miss the many friends we've made here in Indiana," Huang wrote on his blog. "We've given this everything we could and we've had a great run. In the end, though, it just wasn't enough."