Final answer:
In the novel 'Gods of Jade and Shadow' by Moreno-Garcia, Hun-Kame sends owls as messengers between the Underworld of Xibalba and the Middleworld.
Step-by-step explanation:
In Moreno-Garcia's Gods of Jade and Shadow, it is Hun-Kame who sends owls as his messengers between the Underworld of Xibalba and the Middleworld. This detail is part of the rich tapestry of Mesoamerican mythology that Moreno-Garcia weaves into her narrative, bringing ancient gods and the cosmological concepts of life and death into the story's fantastical elements. Hun-Kame is one of the key figures in the novel, which acknowledges the depth and complexity of Mesoamerican belief systems and their pantheon of gods.