Part of the One Color Coloring Book series

Mystery Wizards & Castles Edition

50 hidden pictures per book that you reveal with just one black pen: dots and numbers tell you which simple mark to draw, square by square the picture appears. Six simple marks, one puzzle per page, all solutions at the back.

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Or as a PDF bundle: all 6 One Color books · $12.99 ↗ · all 35 books · $29.99 ↗

How it works

One Color puzzles work with six simple marks instead of colours: dot, slash, backslash, cross, star or filled square, all with one black pen. No colour pencils needed. All One Color Coloring Book books