This does not resemble the author's earlier book Sea Change in continuing tales of the supernatural, but is a preoccupation with death- those who are about to die, and those who know that death is near. Ex-GI, Henry J. Stubbs chances into Gavin MacDowell's life just when Gavin realizes his death is momentarily due, and that the problem of providing for his deaf, unlovely daughter must be faced. It is to Henry that Gavin's book-store offers a refuge, and it is Henry whose quantum mechanics distil Gavin's fore-knowledge of death, solve the question of Gavin's daughter. Henry's experience with death in the war helps the explanation of death as part of life, as more important than atoms, or money. A twilight threshold book that explores the clarification of ideas, of prisoners in time, unfitted cogs, of one man's pitiful romance. Something more along the lines of Frank Baker's audience.