Truth may be the biggest roof crack on Lumpy so far and lucky for you it's an offwidth! If you like thinner and harder roof cracks, try its neighbor, Consequences 5.12.
Grab a chalked up rail in the back of the cave and stuff your feet into the crack above you. Work these overhanging heel-toes until you can get a fist jam followed by pumpy hand jams and then crank-it over the lip.
Truth is located about half way down the Bookend descent. Look for a cave with two roof cracks coming out of it. Truth is the wide crack on the left and Consequences is the thin hand crack on the right.
Bring doubles of big #6 Camalot down to #1 Camalot and maybe a few smaller pieces.