While in the Bahamas with Doc Ford, who is investigating invasive lionfish, Maribel, Luke, and Sabina find precious artifacts but outlaws learn of their find and come after them.

The mummy of King Tut's grandmother is the main attraction at the Fogville museum, but Echo the bat and his human friends, the Bat Pack, discover that at night she is rising from her sarcophagus--can they find a way to bring peace to this restless mummy?