This happened today, and if I remember correctly the same thing happened the other night - although I did not think it was due to this (at the time):
(64 H 45 M 7,259X):
The enchantment on your tan belt fades.

_.-~~---....,,--_
_-- ~--_
< >)
| |
._ _./
```--. . , ; .--'''
| | |
.-=|| | |=-.
`-=_______=-'
| ;
_____.,----------,._____

C R A S H !

This is the enchant skill (not the spell) that mages get at lvl 10.