Hardy Boys Books 21-30 The Hardy Boys Mystery Collection Box Set

Hardy Boys Books have been delighting young readers for decades and now the third ten captivating mysteries are available in a new slipcover for 2019.
The Hardy Boys Collection is the perfect gift for aspiring detectives, or long time fans of the series.
This collectible set is the 2019 edition and contains the third 10 mysteries in the series presented in a specially designed slipcase.
Not only is it the perfect way to keep all the books together, it also looks great on the bookshelf!
This Hardy Boys Box Set includes the following nail-biting titles :
21. The Clue of the Broken Blade
22. The Flickering Torch Mystery
23. The Melted Coins
24. The Short-Wave Mystery
25. The Secret Panel
26. The Phantom Freighter
27. The Secret of Skull Mountain
28. The Sign of the Crooked Arrow
29. The Secret of the Lost Tunnel
30. The Wailing Siren Mystery