There was no guide for this quest, so i made one!

Requirements: Must have completed Eva quests including "the awakened Dark Sword" and Eva's amity must be 70+.
Location: Lost Jungle between Gorge and Domremy (France). Simply take the left portal before entering top portal towards Domremy (France).
REMEMBER: Eva will leave your inventory, take off all clothes before proceeding!!!
What To Do: With Eva in pet inventory, move close to hotspring. Eva tells you not to peek while she bathes.. then Maid Lady appears to tell you about Assassins! Then we fight! Monsters are Evil Armor Solider (LVL129, HP 45,000 + 1repeat respawn) and Skeleton Soliders x7 (LVL109-117, HP 18900 +5 respawns) WARNING: Skeletons have GS Spells (sleep, hotfire, vanish, don't think earth has gs spell) HINT: Bottom two winds plus bottom water don't respawn! See Picture)
After fight, Eva puts her clothes on and returns to pet inventory. Receive 2% exp capsule!!

IN ADDITION: This may or may not be a hot spring for +maxhp&sp.. Not sure.
Thanks :)