Derek's room was on the second floor of Bale's Mage Tower. As he was an official Magician and also managed the sales of low to mid-level magic equipment, he received preferable treatment.
The first thing that caught Link's attention when he entered the room was the small dining area more than 40 square meters wide. On the side of the dining area was a bookshelf. Link took a closer look and only spotted a few magic books, while the rest were simply items such as novels and anthologies, which were of no importance to a Magician.
The number of magic books a Magician had determined his status. From the looks of it, Derek was not doing very well. These Magicians were usually particularly obsessed with money, as it could potentially help them elevate their status.
Link knew with a glance that it would be easy to deceive Derek. He probably only needed a few weeks.