The sub-reward for this step is a mask with one charge of Gnoll Illusion.
Fral then sends you back to the Drowned Caverns to kill 10 more Underpaw Gnolls.
Find three scrolls, these are in the The Drowned Caverns: Flammable Fur instance, which is accessible at ( -18, 32, 12 ) /waypoint -18, 32, 12 in the Outer Grotto. Make sure to pick up the scrolls before you kill Garanim Brewgullet, otherwise you won't be able to complete the quest in that instance.
The scrolls can be found at: (can be picked up in any order)
( -42, -1, -131 ) /waypoint -42, -1, -131 at the back of the zone
( -138, 0, -130 ) /waypoint -138, 0, -130 by all the sleeping Garatch Nim overseers
( -89, -1, -82 ) /waypoint -89, -1, -82 in the pig pen