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