I read this sometime in the mid-80s. I don't think it was more than 100 pages or so.

A boy somehow comes in contact with an Artificial Intelligence who lives in a larger mainframe computer, I think via dialing in from a computer at home. The AI shows him how to modify a pocket calculator so they can communicate while the kid travels around his town. The boy lives in or near a farm town. He discovers that a big company owned factory orchard is poisoning the town's water supply with some kind of insecticide run-off, and the Artificial intelligence helps solve this mystery and uncover the crooks.


Author: Ian McMahan The Microkid Mystery Series


  • Please elaborate on how the answer matches the OP's criteria.
    – Möoz
    Sep 12 '14 at 2:42
  • Wow, I think "Lake Fear" is it, Ben. Now, I just need to get my hands on a copy. Thanks.
    – thwarted
    Sep 13 '14 at 2:35

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