Wow! What a fascinating and compelling story, told brilliantly in the exquisite prose that we've come to expect from Mark Powell. There's a perfect mix of intellectual intensity, philosophical musings and plot lines of divergent stories that Powell brings together for a epiphanic and surprising climax. I wonder if Powell's overriding theme is the unfortunate state of religious faith in our secular world of social media, global wars, and rising immorality that threatens the welfare and safety of our families. Whales use echolocation to find their way through the vast oceans and to keep the pod together using reflected sound waves. Similarly, humans used to rely on faith and religion to find their way to spiritual enlightenment and to help keep the family together. Hence, in these dark days, humanity has lost its way. Our faith and religiosity have atrophied like our ability to echolocate (interpret reflected sound). We have been distracted by "reflected light" instead of focusing on the true inner light. We have forgotten the message of the prophets and the sacrifice of Jesus on the cross. "God is a staircase that ascends to a place that isn't there, or isn't their yet." This quote from Israel's National Poet Yehuda Amichai resonates deeply late in the novel. In a world where situational ethics have infected our moral character and sullied our eternal soul, all we can do is beg for forgiveness and hope that Jacob's ladder as promised in Genesis still exists, that the covenant between God and man is still intact. Thus, the ending is an echo of the Lord's Prayer: forgive us our trespasses as we forgive those who trespass against us. Click, click, click...salvation and redemption are still possible...click, click, click..."the stairs are my faith, the stairs are my despair"...click, click, click.
I also noticed some intertextuality with Daphne Du Marier's Rebecca: the ghost of the dead first wife, the burning of the cabin/Mandalay, the husband's shadowy past. I didn't see any significant connection with the Greek mythology of Echo unless you equate her unrequited love of the selfish Narcissus to Tess's love of John---seems like a reach, though. I love novels that you can sink your teeth into like this. Thank you, Professor Powell for another damn good read!