Hunt 02: Wolf in the Waste
Thextera - Rank I
This Hunt becomes available immediately after you complete the Rogue Tomato Hunt at the beginning of the game (in Rabanastre). You can complete it with just Vaan in your party, but it is significantly easier to complete once you reach the Nomad Village in the Giza Plains and Penelo joins your party.
It is also recommended that your party be at level 3 or higher before engaging in the fight. You should clear away as many of the surrounding Wolves as you can to make the fight as easy as possible.
Petitioner
The petitioner for this Hunt is Gatsly. He is also located in the Sandsea Tavern within Rabanastre, sitting on the ground to the right of the Notice Board.
Mark Location
Thextera is located in the Galtea Downs area of the Dalmasca Westersand, prowling among the packs of Wolves that roam the zone. Check out the map below for the exact location.
Hunt Battle
Level: 6
HP: 380
Steal: 
Pebble, 
Potion, Wolf Pelt
Once again, make sure to clear the area of as many of the patrolling Wolves as possible. The easiest way to lose this fight is to lose control by having to face additional monsters in the area.
Thextera will also cry for help in an attempt to enlist any nearby Wolves to join in the fight. Attack any additional Wolves as they appear and then take down Thextera. Head to the Nalbina Fortress to purchase items, Magick, weapons and armor or take some time to level your characters if you are having trouble with this fight.
You can find a video of this battle in the Zodiac Age version below.
Return to Gatsly once you have defeated Thextera. Rewards for completing this Hunt include: 500 Gil, 
Headguard, and a Teleport Stone.