Service Goat

Orphaned and blind seven-year-old Callie has a service animal - a goat with extraordinary powers.
Ben Hemoth is a down-on-his luck news reporter facing prison. Needing to save his job and his reputation, he teams up with Venus, a young seductress caught up with a teenage drug gang.
When a mysterious letter arrives detailing a top-secret investigative operation, Ben and Venus think they've found their chance for redemption. The mission? Investigate a goat.
In exchange for an extravagant paycheck, Ben and Venus must piece together the wild rumors swirling around Callie, her supernatural goat, and a possible UFO visit.
Piers Anthony's Service Goat is an extraordinary tale rich with adventure, extraterrestrial visitors, secrecy, dangerous governmental operations, and the classic hints of mischief that readers have come to expect and love from the New York Times bestselling author of the Xanth series.