THE SULLIVAN DETECTIVE AGENCY: DOUBLE TROUBLE THE FINAL CLUE (PART-III) (Audiobook Version)

The Sullivan Detective Agency: Double Trouble: The Final Clue brings Carter and Cooper back home to investigate a missing sarcophagus and strange activity beneath their school. Sneaking through abandoned parks and storm-lit halls, the twins follow coded clues to a rumbling basement and a dark secret. Explore this thrilling part, which is now available in an audiobook!