Find amazing dot-to-dot puzzles with everything from 100 to 1,000 dots. The intensity builds as puzzles start easy but get harder as you go along. Puzzles will challenge kids (answers are in the back) and get them racing to join those dots. Color them in too! Each of the books in the Challenging...Books series is packed with entertaining puzzles have time challenges, so kids can try to beat the rest of the best.