Got a nice review today:

SASHA PAULSEN, Napa Register
"Danger: Falling Rocks," clever and captivating, is greatly enriched by the setting Wagner creates in meticulous detail. He pulls readers along on a trail through the mountains, keenly observing a world in which the greatest threat, of course, is humans...

An excellent excursion for armchair mountaineers, "Danger: Falling Rocks," could also inspire one to dust off the old backpack and head for the hills....
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Check our our website: http://www.backpackthesierra.com/

Or just read a good mystery novel set in the Sierra; https://www.amazon.com/Danger-Falling-Rocks-Paul-Wagner/dp/0984884963