The Creepy Computer Mystery (Invisible Inc. No. 4 / Hello, Reader! L - GOOD

The Creepy Computer Mystery (Invisible Inc. No. 4 / Hello, Rea - ACCEPTABLE

The Creepy Computer Mystery (Invisible Inc. No. 4 / Hello, Reader! Level 4)

The Creepy Computer Mystery; Invisible In- 0590603221, paperback, Elizabeth Levy

The Karate Class Mystery (Invisible Inc., No. 5; Hello, Reader! Level 4) - GOOD

The Schoolyard Mystery (Invisible Inc., No. 1; Hello Reader! Level 4)

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