My guess -- Sirius is dead and Dumbledore is not. I suspect that Dumbledore and Snape used The Draft of the Living Dead to make it look like Snape killed him. Of the three potions displayed in the first Advanced Potions class only the Draft of the Living Dead was not used. I think it was a clue.
The University of Chicago Net Price Calculator. The cost calculator is designed to help families plan for the costs associated with attending The College at the University of Chicago.
The annual total list price cost to go to Loyola University-Chicago was $41,626 for the 2015/2016 academic year. The cost is the same for all students regardless of Illinois residence status as there is no in-state discount. Tuition for Loyola University Chicago is $39,130 for the 2015/2016 academic year. This is 50% more expensive than the national average private non-profit four year college tuition of $26,024. The cost is $16,677 and 74% more expensive than the average Illinois tuition of $22,453 for 4 year colleges.