Caldecott honor book: 1987.

Norse god Loki records the highs and lows of living on Earth as an eleven-year-old in grumbles, snarks, and doodles in his enchanted diary. He might not have shown any moral improvement (yet); but Odin has given Loki another chance to prove himself worthy of Asgard. Earning everyone's trust isn't easy, however. So far, Loki has managed to make only one human friend, Valerie, but is now irritated to learn that Valerie has made another friend, Georgina....

When Loki and Amora cause the destruction of one of Asgard's most prized possessions, Amora is banished to Earth, where her powers will slowly and excruciatingly fade to nothing. She was the only person who ever looked at Loki's magic as a gift instead of a threat; without her, he slips further into anguish and the shadow of his universally adored brother, Thor. When Asgardian magic is detected in relation to a string of murders on Earth, Odin sends...