Here is the full list of all 38 Love of Magic Book 3: The Return achievements.
Act XII complete
Act XIII complete
Act XIV complete
Act X complete
Act XVI complete
Defeat Jormungard
Defeat Fenris
Defeat Hel
Help Xochi heal Elsewhere
Complete Jenny's story
Come on, baby. Molly needs a new pair of shoes
Help Dylan find true love
Finish R2 Sarah's Story
Help Katie become a Power in R2
Defeat the Djinn
Buy an outfit for Emily in R2
Finish Blessed in R1
Run into an unfortunate defiler
Tell Emily Llywarch's story
Pass Emily's Dance 10 skill check day 271
Pass Fenrir's Rage 100 Stat check
Pass Jormungandr's Rage 100 Stat check
Finish Diana's Books
Drink in the Crowley at least 10 times
Drink in the King's Dragon at least 10 times
Dance with Emily at least 10 times
Complete all Kingdom events
Have all the Flawless gems
Cumulative Damage 100,000HP
Cumulative Damage 1,000,000HP
Cumulative Damage 10,000,000HP
Enemy has at least 1,000 points of poison
Enemy has at least 10,000 points of fire
Enemy has at least 10,000 points of ice
Do at least 10,000 points in direct damage in one attack
Shield Blast over 9,000
Gain 5000 Rage and 10000 Shields.
Deal 20000 damage total in one turn.