
The chase so far
Five Spark Keys, five planets. Each book wins some of them back.


Cogworld
The Yellow Key · Book 1
On Amazon
Aquaris
The Blue Key · Book 1
On Amazon
Lumen
The Red Key · Book 2
Coming soon to Amazon
Verdia
The Green Key · Book 2
Coming soon to AmazonFrostbyte
The last key · Book 3
In the works
Book 1 · Ages 7–10
The Spark Key Chase
The lights of Voltville have gone out. Robi and Pip fly to gear-filled Cogworld for the Yellow Key and to the underwater world of Aquaris for the Blue Key.
- 70 logic puzzles, each with exactly one answer
- 12 thinking skills, one per episode
- Puzzles rated from one star to three, plus a boss lock on each planet
- Badges to color, a certificate, and all the answers at the back
- 106 pages, full color
Twelve thinking skills, one badge each
- Robo-Path
- Shape Sudoku
- Symbol Code
- Balance Scales
- Gear Spin
- Picture Grid
- Sharp Eyes
- Mirror Pictures
- Maze Runner
- Logic Grid
- Patterns
- Number Hops


Book 2 · Ages 8–10
Mission to Lumen & Verdia
Two more Spark Keys: the Red Key on Lumen, a floating island of crystal where light bends and shadows hide, and the Green Key in the roots of the World-Tree on Verdia.
It starts where Book 1 ended, and opens with a two-page recap for new readers.
- 74 logic puzzles
- 12 new thinking skills
- A boss puzzle on each planet that needs two skills at once
- 130 pages, full color
Book 2 has been sent to Amazon and is waiting for approval. The link will appear here.
And my compass works again! Where to next, Robi?
Don’t look at me like that. I was just… thinking.
The last page of Book 2.
Book 3: Frostbyte
Book 2 closes by saying where the adventure goes next: the planet Frostbyte. That book is being written and drawn now. It has no title and no date yet.
Meet the crew

A small robot with a big brain. Robi never guesses: he looks, thinks, and finds the answer.
Robi’s compass-drone and best friend. Pip always has a helpful tip.
A mischievous static-puff who loves scrambling things. He’s not mean… just VERY annoying.
From page 3 of Book 1.



