Albus beamed. This had been Severus" favorite point of argument about Quirrell, who was pureblood and only slightly less baffled by Muggles than Arthur Weasley. Students" ability to pass the OWLs had tended to be rather dependent upon their ability to read their textbooks. Albus had eventually sent the professor on sabbatical when the number of complaints by Muggleborn and half-blood students had surpassed five in a single year. But this time - "I did, as a matter of fact!" he said proudly.