An Armada of Trouble is book 3 in the The Time Travel Twins sequence. Three time-travel adventures follow orphaned twins Pew and Basket Church as they uncover their family history. It follows The Pharaoh’s Tomb and should be read after that volume. Readers new to the series should begin with The Time Travel Twins and follow the numbered publication order, which preserves the characters’ continuing development and the story’s intended progression.