"The Aldens travel to Australia and Antarctica. But someone they count on is working for their rivals, the Argents! Can the children keep the artifacts out of the wrong hands?"--Back cover.
The Aldens continue their mission to return lost artifacts around the world, following clues through Australia, New Zealand, and Antarctica all while trying to stay one step ahead of a saboteur.
"The Aldens travel to Australia and Antarctica. But someone they count on is working for their rivals, the Argents! Can the children keep the artifacts out of the wrong hands?"--Back cover.
