Author Madeleine L’Engle wrote a heckuvalotta novels. In addition to the Wrinkle in Time (or the Kairos series as she called it) books pictured above, she also wrote a second generation series about the same family, plus the Chronos series about the Austin family, the Katherine Forrester series, and the Camilla Dickinson series. One thing all of these books have in common is the mystical nature of their titles. (Read my reviews of A Wrinkle in Time and A Swiftly Tilting Planet.)
If the author had written more, or had some stashed away in a safety deposit box, they might sound like these, courtesy of random generation, and open for use.
Unwritten Madeleine L’Engle Novels
An Irrational Miracle
A Patient Stitch in Fate
A Shadow Comes Striding
Small Greens
A Cloud in the Window
Take a Breath for Treading
An Empty Knot of Knowledge
A Pocket of Wisdom
Elder Waters
The Dragon in the Parlor
The Patient Sphinx
Empty Places in a Young Heart
An Oddly Watching Interface
Grooves in the Water
The Joyful Hemisphere
Small Patterns of Creation
A Breeze through the Palace
Watching Whispers