The Blue Owlet, Sapphire appears as a shapeshifter in Levi and the Emerald Vampire. Sapphire, known as the "wisdom stone," represents clear thinking. Sapphires were a source of protection for travelers and brought peace and wisdom to their bearers. The Blue Owlet assists Levi and the Emerald Vampire with time travel by appearing near their portals for entry and departure. In her human form, Sapphire is known as Hazel.