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?
When Echo's human friend, Rebecca Silver, is kidnapped by a witch who wants her for an assistant, Echo and the Bat Pack must risk their lives to rescue her.
When the lake in one of Fogville's parks suddenly becomes polluted and starts to boil, Echo the bat and his human friends, the Bat Pack, venture into the sewers to find the monster that may be causing the problem.
Echo the bat and his new human friends, the Bat Pack, set out to discover why a mysterious hooded figure and his companion raven are digging up graves and looking for treasure in the cemetery.