
Reformation Trust and Ligonier are making the ebook edition of Surprised by Suffering: The Role of Pain and Death in the Christian Life by R. C. Sproul for free during August.
The blurb:
The problem of suffering is often raised by those who question the goodness or the power of God. In this book, newly revised and expanded, R.C. Sproul provides biblical answers to the questions all of us ask about suffering and addresses some of the many unbiblical conclusions that are put forth today. In the end, he shows that suffering is not outside the realm of God’s providence and His good purposes.
This page at Ligonier has links to various formats.
The kindle edition is also currently listed for free at Amazon.