Follow this Method
1. Try the links to Login Scholastic 39 Clues Account, from the below answers.
2. Use your Scholastic 39 Clues account User ID and Password to Signin.
3. If you do not have your account registered on Scholastic 39 Clues, you can create new account or id you forgot your password, you can reset it to login Scholastic 39 Clues.