Lake Friction

Len's new coaching assignment takes him to a lakeside community, and he overhears thieves discussing sabotage to force government action on climate change. He deals with the thieves, but this leads to payback.
He and his niece are introduced to the water sports and fishing pleasures of the lake, but murder attempts on friends soon steal his focus and provide links to the sabotage plot. He tries to discover the activists and intervene.