Multiple choice general knowledge What does Cistem Aperio spell do? Opens a locked chest Open the locked door Disarm the other person Brings a red light at the end of wand Reveal answer Fill a bubble to check yourself A Correct answer Explanation Cistem Aperio is a spell that opens locked chests or boxes. It was used by Hermione Granger in the first Harry Potter book during the challenges to obtain the Philosopher's Stone. The name literally translates to 'I open the chest' from Latin.