From ErfWiki

Proposed Canon

Strengths: Curiosity, Generosity, Stylish Jackets

Weaknesses: Loneliness, Focus, Confidence

First Appearance: TBFGK 140

Isaac is a Headmaster among the Thinkamancers. ^{LIAB Text 40}

First seen when Parson entered the Magic Kingdom after the Battle for Gobwin Knob, he summoned the Thinkamancers to unravel the Croakamancer-Dirtamancer link up, saying they'd do it for no charge.

Isaac is a rarity among the casters of the Magic Kingdom, not content with debating and arguing over theories and hypotheses on the nature of magic and Erf, but actively working to discern reliable and consistent facts. So far, this has led to the creation of a number of devices to aid thinkamancers in better accessing nodes of amplification or attuning to the frequencies of certain G-String vibrations.

Speculation

Should he ever link up with a Carnymancer, they will create devices capable of automatically switching Thinkamancers between nodes at precisely calibrated frequencies to achieve Thinkamancy that, while not as versatile, will actually rival the Arkendish in power.

Real World References

His name coupled with his tendencies as a natural philosopher are a reference to Isaac Newton.

His appearance is a reference to Carl Sagan.

His desire for the Arkendish as a tool of observation may also be a reference the use of radio telescopes in astronomy.