Originally Posted by
Spore
Adalbert goes to shop for a Shatter scroll, and checks availabilty on such a wand...
These would be available at standard prices if you want them brand new. A second-hand wand with
(1d4)[4]x10 charges left can be found with a DC 20 gather info check.
Originally Posted by
Spore
...as well as looking for ways to research former and current psychics in the city.
This would be gather info. You'll more or less easily find public figures and those who want to be found that way. About others, it is much less certain. Also, an extensive search might attract some attention.