X-link to the DRM-free megathread for this Tuesday's Wildside Press freebie:
Hue and Cry by the late Thomas B. Dewey, a vintage murder 1st-in-series mystery originally out in 1944, starring Singer Batts, a Shakespearean scholar running a small town hotel in Ohio.
Also, the current
Humble Music Book Bundle contains at the better-than-average tier 2 backlist murder mysteries by Greg Kihn centred around Beatles memorabilia, out from Open Road Media. It's probably too pricey for just the mysteries alone, but if there's anything else you wanted in the bundle, it'd probably be worth it.