[POV of a nameless and unimportant Scholar of the Tower]
The nameless and unimportant Scholar of the Tower wasn't having the best day. After a catastrophic failure in his laboratory led to an otherworldly evil being summoned onto this plane of existence, research had to be put on hold until an agreement could be formed with the ancient evil.
He had taken this time to stop by the storerooms in the basement, to see if he could find anything else useful for the continuation of his experiments, but had yet to locate anything worthwhile. The basement was just too filled with things, and unless you were willing to spend a few months searching, you would be going purely on luck.
And his wasn't the best. As he cast aside a staff he had been checking, a loud crack came from somewhere to his left. When he looked over, he saw a small green storage crystal, and a small spiderweb of cracks coming from it. As he watched, the cracks spread, until the crystal was completely covered in them.
As he turned away, to report this to one of the Sentinels, the crystal exploded, shards flying throughout the enclosed space. One of them impalled itself in the Scholar's head, and everything went black.