Finding Gossamyr. Volume 1 / David Rodriguez, Sarah Ellerton.

Enhanced descriptions from Syndetics:

In the world of Gossamyr, power is as simple as comprehension. A spell is atheorem and the theorem must be written in the air and proven for it to takehold. Denny's unique gift allows him to solve theorems that would drive anyoneelse insane, but he doesn't think of the world on those terms. He can only solveproblems, not consider the appropriate answer for a situation. Fortunately, thechildren are befriended by allies who strive to send the stranded siblings homebefore dark forces can use the boy's power for evil. This beautifully bound hardcover edition of Finding Gossamyr collectsthe first volume of this critically acclaimed series, and is packed with132-pages of gorgeously painted story, concept art, guest artist gallery, abeautifully illustrated map of the world of Gossamyr, and an exclusive shortstory created just for this edition.
Reviews
No one ever trusts their math teacher, which is why kids need to read thiscomic before their teachers can recommend it, because it's a math book thatactually is fun. For maximum effect with readers, tell them the premise of thebook is: Math can kill you. On the world of Gossamyr, math is a form of combatand a vehicle for magic. A little boy named Denny ends up in Gossamyr with hissister when he completes a theorem. He's suddenly in a parallel world withflying boats and blue oxlions. Younger readers will want oxlions of their own,to keep as pets. Hard-core fantasy readers may be frustrated with all theclichs. There's an honorable warrior, and there are outsiders trapped in a worldthat only they can save. But the characters cease to be clichs as soon as theystart to speak. Denny can measure pieces of wood by sight, to the millimeter,and when his sister tells him, "It's okay if they're not exact," he says, "No,it's not." Ellerton's glossy, luminous panels have an airbrushed look that givesboth world and characters depth and warmth. This book won't make math any lesstroublesome, but it might keep students interested in the subject matter. (Andif it doesn't, they'll have something to think about during the lecture onequilateral triangles.) KIRKUSREVIEWS

Math is literally magic in Gossamyr, an enchanted world 10-year-old Dennyand his 22-year-old sister/caretaker, Jenna, enter after he finds the answer toan unsolvable and mystical equation. As a savant who cant not solve a mathproblem, Denny is worth a lot to the inhabitants of Gossamyr, some of whom plotto use his power to open more portals and conquer new worlds. After fallingunder the protection of Azune DTal, a former slave and steadfast protector ofGossamyr, and Eloric Boothe, a gallant adventurer of the desert-dwellingSandgrieve people, Denny and Jenna find themselves at the center of a strugglefor freedom with consequences that go beyond Gossamyr. Employing the polishedvisuals and nonstop pace of todays CG movies, Rodriguez and Ellerton deliver asmooth and satisfying adventure that draws readers into a fully realized worldwithout dense exposition (instead, a useful postscript details elements ofGossamyrs history and language). Now that this intriguing world has been found,readers will be ready to explore it and see what other stories it has to offer.PUBLISHERS WEEKLY