Lulu Atlantis and the Quest for True Blue Love by Patricia Martin
Lulu Atlantis has a big problem: her new baby brother, Sam. With him in the picture, Mother certainly doesn’t need her around. Luckily, she has her best friend, Harry, a top-hat-wearing daddy longlegs spider to turn to. Over the course of four enchanting parts, the two friends rescue a skunk stuck in a yogurt pot, encounter gangster bakers, seek out the Secret Ingredient to make Sam’s oatmeal edible, and contend with a monster (not to mention an evil cat named Princess Fancy). Through it all, Harry stands by Lulu Atlantis, his one and only True Blue Love, as she searches–quests!–for some True Blue Love of her own.