The classic Choose Your Own Adventure series already had a brief flirtation with the iPhone a year ago (courtesy of Magnetism Studios) with a 99¢ app featuring two books — Return to Atlantis and Journey Under the Sea. But now, you can collect nearly 30 more titles, courtesy of the free Amazon Kindle app.

Timed with their 30th anniversary, parent company Chooseco, LLC recently inked a deal with Amazon to make their titles available on the Kindle, including the ever-popular The Abominable Snowman and Terror on the Titanic.

The series, which has been helping kids read for three decades now, was launched in 1977 with R.A. Montgomery’s Journey Under the Sea (written under the pen name “Robert Mountain”). In 1979, Bantam Books took over the series and christened them Choose Your Own Adventure.

This is an extra benefit to iPhone and iPod touch users, since the free Amazon Kindle app (and soon, a Mac version of the desktop software already available to Windows users) already opens up the e-book floodgate, negating the need to buy Amazon’s pricy hardware.

Kindle versions of the Chooseco titles are only $5.59 each, and Amazon is offering a free download of House of Danger (Choose Your Own Adventure #6) for a limited time. As always, Kindle books have to be purchased via their website first, then they are wirelessly transferred to your device. The iPhone app includes a “Get Books” link to a mobile version of the Kindle Store to enable purchasing from your device.