Personally, I give it a 5/5. I read two of Klune’s books - Whispering Door and Cerulean Sea - back to back in the weeks following the abrupt death of my father, when I was struggling to find comfort in books. Whispering Door had me weeping every night. I was deeply touched by the care and sensitivity with which Klune handles the issues of death and grief in his writing. Likely due to my emotional state when I read these books, that struck a deep chord with me. I have devoured books related to grief in the last few months, and very few books gave me comfort the way Klune’s did.