Cartographer's Studio (SNS)

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To make full use of his abilities, a cartographer must have a studio in which to work. Each cartographer starts off with a meager studio at 1st level. After that, the cartographer must pay 200 gp per level to upgrade his studio. For example, when Barth reaches 4th level he must pay 800 gp to upgrade his studio.
For every level of difference between the cartographer's experience level and the upgrade level of his studio, the cartographer suffers a -2 penalty on his Cartography proficiency checks. For example, Darnuth, a down-on-his-luck cartographer, recently attained 6th level. Unfortunately, he only has the funds to upgrade his studio to level 4. Darnuth suffers a -4 penalty to all of his Cartography proficiency checks until he spends the money to upgrade his studio to level 6.
Unfortunately for Darnuth, he cannot just spend 1200 gp (200 gp x his level) and have his studio jump from level 4 to level 6. He must first upgrade his studio to level 5-for a cost of 1000 gp (200 x 5)-before he can upgrade to level 6. Thus, Darnuth must pay a heady grand total of 2200 gp to bring his studio up to his level.
A cartographer loses access to some of his abilities when not in his studio. For instance, without a studio, a cartographer cannot find maps that a customer may want. In addition, a cartographer cannot determine the authenticity of a particular map outside of his studio.