A to Z Challenge - U is for University

The A to Z challenge is to write a daily blog post centred around a different letter of the alphabet each day. I will attempt to write a complete story which will continue each day and hopefully draw to a conclusion when we get to Z.
For previous posts click a letter - A , B , C , D, E , F , G, H, I,  J, K, L, M, N, O, P, Q, R, S, T
 

Mac headed back to the university to see if there were any more clues or if anyone could give him some more information. His first stop was the university...