Free "Harry Potter" e-books to be offered through Kindle

J.K. Rowling buries a time capsule to mark the start of building work on a research clinic for patients with multiple sclerosis on Nov. 7, 2011, in Edinburgh, Scotland.

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(CBS/AP) NEW YORK - The "Harry Potter" series has joined the Kindle lending library.

Amazon.com announced Thursday that on June 19, the e-book editions of J.K. Rowling's seven Potter novels will become part of the Kindle service available to Amazon Prime subscribers. Members can download a book for free once a month. Amazon's library has more than 145,000 books.

Financial terms were not disclosed for the online retailer's "licensing agreement" with Rowling.

Rowling only recently permitted e-books of the Potter series and has been offering them through her own Pottermore website. The e-books on the Kindle will be available in English, French, Italian, German and Spanish.

The author has said she's currently working on a "Harry Potter" encyclopedia, and plans to give the royalties to charity. Her next novel, "The Casual Vacancy," will be released on Sept. 27.