Margaret Mizushima

When Deputy Mattie Cobb and her K-9 partner, Robo, get called to track a missing junior high student, they find the girl dead on Smoker's Hill behind the high school....

An explosion outside a community dance sends Mattie Cobb and Cole Walker reeling into the night, where they discover a burning van and beside it the body of outfitter Nate Fletcher. But the explosion didn’t kill Nate - it was two gunshots to the heart....

When Deputy Ken Brody's sweetheart goes missing in the mountains outside Timber Creek, Mattie Cobb and her K-9 partner Robo are called to search....

When a young girl is found dead in the mountains outside Timber Creek, lifelong resident Officer Mattie Cobb and her partner, K-9 police dog Robo, are assigned to the case....

Colorado's Redstone Ridge is a place of extraordinary beauty, but this rugged mountain wilderness harbors a horrifying secret. When a charred body is discovered in a shallow grave on the ridge, officer Mattie Cobb and her K-9 partner, Robo, find this is no ordinary crime....

A deluge has flooded the high ground near Hanging Falls - but heavy rains aren't the only menace descending on Timber Creek. While on a scouting mission to pinpoint trail damage, officer Mattie Cobb and her K-9 partner, Robo, stumble upon a body floating at the edge of a lake....

Secrets hide within the fog deep in the mossy forests of the Pacific Northwest, in this ninth thrilling installment in award-winning author Margaret Mizushima’s Timber Creek K-9 Mystery series.

A killer lurks in Colorado’s snowy high country in Dying Cry, the tenth thrilling installment of award-winning author Margaret Mizushima’s Timber Creek K-9 mystery series.

Deputy Mattie Cobb and her sister, Julia, travel to Mexico to visit their mother, but when they arrive, they discover that she and her husband have vanished without a trace....

He was suspect number one - the man who tried to kill Deputy Mattie Cobb and may have killed her father 30 years earlier. But when Mattie and cold-case detective Jim Hauck reach the Colorado state prison where they will finally get to interview him, he's found dead in his cell....