The brothers reclined on beach chairs overlooking the lake on the mansion’s fourth floor. “It’s about time we took a rest,” mused Joe. “For the last year it seems as though we’ve had a new adventure on our hands nearly every hour!” The Hardy lad was not exaggerating. After the agreeable outcome of their first case, The Tower Treasure, the boys proceeded to solve infinite mysteries. Their latest caper, The Headhunter’s Surprise, had led them from Mongolia to Mars to Easter Island where they tracked down a collection of priceless snapdragons which had been smuggled away and stored inside the monolithic heads of that landmass. The Headhunter’s Surprise is on bookshelves everywhere, from Grosset and Dunlap.