Charles Tang
Language: English
ISBN
Publisher: Albert Whitman & Company
Published: Jul 15, 2011
Some important papers and a student go missing from the observatory while the Aldens visit a college with their grandfather, they have to investigate both disappearances and see if they are connected.
Description:
Some important papers and a student go missing from the observatory while the Aldens visit a college with their grandfather, they have to investigate both disappearances and see if they are connected.