There are two books with this title.
Touching Darkness is by Scott Westerfeld. The paperback has 336 pages.Touching Darkness (The Offspring) is by Jaime Rush. It has 400 pages.
She Is the Darkness has 470 pages.
Touching from a Distance has 208 pages.
A Darkness at Sethanon has 425 pages.
The Lake of Darkness has 201 pages.
Green Darkness has 480 pages.
Blooms of Darkness has 265 pages.
An Acquaintance with Darkness has 384 pages.
Time of our Darkness has 328 pages.
At the Gates of Darkness has 322 pages.
Chasing Darkness has 288 pages.
The White Darkness has 384 pages.
Stalking Darkness has 512 pages.