The Properties of Water — Hannah Roberts McKinnon

When Lace's older sister, Marni, falls victim to a summer swimming accident, it paralyzes Lace in time. For Lace, there is only a before--can there be an after? But as the summer surges on, she learns that she must return to the water, the very thing that tore her family apart. This beautifully crafted novel explores the boundaries of family and friendship, the greatest griefs that knock us down, and the smallest kindnesses that guide us to safe harbors.