That Elusive Something

Searching for Eternity by Elizabeth Musser
Enduring Justice by Amy Wallace
The Search for Joyful by Benedict Freedman
A State of Grace by Traci Depree
The Hope of Refuge by Cindy Woodsmall

Gold of Troy: Searching for Homer's Fabled City, by Irina Antonova
In Search of Blandings, by N.T. P. Murphy
Search for God at Harvard, by Ari Goldman
A Young Man in Search of Love, by Isaac Bashevis Singer
If You Can't Be Free, Be a Mystery : In Search of Billie Holiday. by Farah Jasmine Griffin

Standing in the Rainbow by Fannie Flagg
Just around the corner by Leland B Jacobs
Hide and Seek Fog by Alvin Tresselt
In Your Dreams by Tom Holt
The Alchemist by Paulo Coelho

The Cloud of Unknowing by Anonymous
Beyond the Glass by Antonia White
Dust Tracks on a Road by Zora Neale Hurston
The Well at the World's End by William Morris
At the Foot of the Rainbow by Gene Stratton Porter

Blue Arabesque: A Search for the Sublime
What is Good? The Search for the Best Way to Live
The Stormy Search for Self
In Search of Lost Roses
The Discoverers: A History of Man's Search to know his World and Himself

Peace on Earth by Stanislaw Lem
Sea of Tranquility by Mark Haddon
The Golden Fleece by Robert Graves
The Silver Chalice by Thomas B. Costain
Holy Blood, Holy Grail by Baigent and

The Long Search by Isabelle Holland

My Search for Patty Hearst by Steven Weed

The Search by Iris Johansen

Are You There God? It's Me Margaret by Judy Blume

The Search for Anna Fisher by Florence Fisher

A la recherche du temps perdu by Marcel Proust (well, someone had to be the first to list it)
The story of the treasure-seekers by E. Nesbit
Looking for trouble by Charles Simic
The quest for Kim by Peter Hopkirk
Lost empires by J.B. Priestley

The lost gardens : an English garden mystery by Anthony Eglin
Jean at noon; or, Summer's treasure by Janet Sandison
Field notes on the compassionate life : a search for the soul of kindness by Marc Ian Barasch
The elusive Mrs. Pollifax by Dorothy Gilman
Rainbow Valley by L. M. Montgomery

Disappearing Acts by Terry Macmillan

The Vanishing American by Zane Grey

"Disappearing Languages; some Insights from Hawaiian, Yiddish, and Scottish Gaelic" by Roland F. Perkins

The Disappearing Floor by Franklin W. Dixon

The Lost Steps by Alejo Carpentier

The Distant Hours by Kate Morton
The Forgotten Garden by Kate Morton
Yume No Hon: The Book of Dreams by Catherynne M. Valente
Affinity by Sarah Waters
Can You See What I See? by Walter Wick

The Age of Innocense by Edith Wharton
The Lost Lady by Willa Cather
Gone With the Wind by Margaret Mitchell
Travels With Charley: In Search of America by John Steinbeck
Searching for Caleb by Anne Tyler

The Invisible Man by H.G. Wells
Pentimento by Lillian Hellman
A Gesture Life by Chang-Rae Lee
Echoes in the Darkness by Joseph Wambaugh
The Book of Fate by Brad Meltzer

The Book of Lost Things by John Connolly
Decoding the Heavens: A 2,000 Year-Old Computer--and the Century-Long Search to Discover Its Secrets by Jo Marchant
The History of Love by Nicole Krauss
What Alice Forgot by Liane Moriarty
The Lost Testament by Alan Gold

The Lost Staircase by Elinor M Brent-Dyer
The Happiness Project by Gretchen Rubin
The Rainbow Comes and Goes by Diana Cooper
Finding Sanctuary by Christopher Jamison
The Wouldbegoods by E Nesbit

The Searchers by Alan Lemay
Through a Glass Darkly by Karleen Koen
Looking For Salvation at the Dairy Queen by Susan Gregg Gilmore
Looking For Mr. Goodbar by Judith Rossner
The Mists of Avalon by Marion Zimmer Bradley

Tall, Mean, and Darkly by A. J. Llewellyn

Northern Mists by Carl Ortwin Sauer

Monsoon Mists by Christina Courtenay

The Disappearing Floor by Franklin Dixon

The Vanishing Tower by Michael Moorcock