Rejoining the College TES V: Skyrim Guide
New main objective: Speak with Tolfdir

This quest will appear in your journal only if you hurt or kill one of the College of Winterhold mages (don't worry - the most important characters, connected with the College main quests can't die). As penance for your deeds, return to Tolfdir and agree to pay the fee (screen above). The first crime will cost you 250, the second 500 and each subsequent 1000 gold.