Missing glasses

Description
Mark Ranek asked me to find his glasses. As if it's my fault he lost them!

Completion
Talk to Martha Stein, give her a chocolate candy, either stolen or bought from Nathan Kehler. Confront Patrick Stein to obtain the missing glasses. Return to Mark. If the truth is told concerning Patrick use of the glasses at school, gain $500

Hint
Glasses make you look smart so who is the only character you know that has their head in the books.