Here is the full list of all 12 Spellbind achievements.
Get the wine bottle in cellar.
Luppe goes up the stairs in cellar.
Click on at least 12 books in library.
Skip at least 12 puzzles.
Solve at least 12 puzzles.
Reach the good ending.
Reach the neutral ending.
Reach the evil ending.
Twice fail to light the candles in the correct order.
Light the candles in the correct order.
Wrongly cast the True Sight in three different places.
Wrongly cast the Levitate spell in three different places.