Melinda Thielbar

The Lost Key : A Mystery with Whole Numbers

Melinda Thielbar

The Ancient Formula : A Mystery with Fractions

Melinda Thielbar

The Hundred-Dollar Robber : A Mystery with Money

Melinda Thielbar

The Fishy Fountain : A Mystery with Multiplication and Division

Melinda Thielbar

The Book Bandit : A Mystery with Geometry

Melinda Thielbar

The Secret Ghost : A Mystery with Distance and Measurement

Melinda Thielbar

The Kung Fu Puzzle : A Mystery with Time and Temperature

Melinda Thielbar

The Kung Fu Puzzle : A Mystery with Time and Temperature

Melinda Thielbar

The Kung Fu Puzzle : A Mystery with Time and Temperature

Melinda Thielbar