Observation

Spells Gained:
Observation Philosophers gain all divination spells at their lowest level to their formulae list

Mutagen Effect:
An Observation Philosopher’s mutagen makes the user eerily observant and invasive, bulging at the eyes and able to make assumptions more easily. They gain their bonus to Intelligence and penalty to Charisma. Under the effects of their mutagen they tend to be quiet and lose themselves to their curiosity.

At 5th level you gain a bonus to perception equal to half your level and 60ft Dark vision, or an additional 30ft if you already have dark vision.

At 10th level you gain the scent ability and See in Darkness.

At 15th level you may choose to gain either telescopic vision, acting as if you had the effects of a telescope while under your mutagen, or True seeing when you brew your mutagen.

At 20th level your senses are overwhelming. The range of your scent doubles, you gain All-Around Vision, and Blindsight within 30ft.

Crystal Eye (Ex):
At 3rd level you create an eye like device which can record images on an internal crystal sphere. The device is fine sized with a hardness of 8 and HP equal to twice your philosopher level. When loaded with a crystal sphere costing 5 Gold per level it may record up to one hour per level of silent visuals. The eye has no special vision however you may read the crystal sphere’s recordings over the course of 1 minute to review all its content. The device may be hidden with a +16 + Philosopher level Stealth as a special check which takes a full round action. It must manually be told to start or stop recording. When reviewing the crystal you may use your own perception to see as normal.

Should the device be destroyed a new one can be built for 200 Gold with two hours of work.

Lucky Coin (Su):
At 6th level a lucky coin finds its way into your possession. This coin can be flipped a number of times per day equal to your intelligence modifier, which then acts as the augury spell. If it lands heads up it means weal, tails is woe, and if it lands on its edge it may be either both or nothing. If this coin is ever lost or stolen it loses this ability and a new coin on your person gains this ability after 24 hours.

Following Eye (Ex):
At 9th level your Crystal Eye is modified into a new frame. This new form grants it a 50ft fly speed with good maneuverability, a 30ft movement speed, and a 20ft swim speed. It may use its normal stealth bonus for disguise to appear as any diminutive sized creature. You may direct the eye with rudimentary intelligence to follow a target, move within a structure or scan an area allowing you to later make perception checks as normal when you review its crystal.

Perfect Recorder (Su):
At 15th level your Crystal Eye now benefits from all the effects your mutagen would give you, as well as your own normal senses. This includes methods of magical vision, hearing, scent, touch, and even taste should the eye touch an object. You may now focus as a full round action to lose senses in your own body to observe through the eye, gaining full control over it using its senses and being able to issue new orders to it.

Warning: Marked for reworking!
Shit might change here as I do not like the current rendition.