All but Impossible: The Impossible Files of Dr. Sam Hawthorne (Unabridged)
2025
The Last of the Unicorns (Unabridged)
2025
The Last Unicorns (Unabridged)
2025
Challenge the Impossible (Unabridged)
2025
Nothing Is Impossible: Further Problems for Dr. Sam Hawthorne (Unabridged)
2024
More Things Impossible: The Second Casebook of Dr. Sam Hawthorne (Unabridged)
2025