The Science Club is exploring an old silver mine and in the dark tunnels Caitlin and a friend become lost from the others.

Moquedas, or Tonto, The Brave, as he is known to his companions, Mehitabel Lee and Ronnie Jones, with whom he shares many adventures, while hiking with them in the canyons around their town of Highland Boy, come across a deep abandoned mineshaft. When Ronnie drops a pebble into it to determine its depth, instead of a rock-against-rock echo or the sound of a splash, they hear a screeching throbbing wail as though from a tormented witch. Thus begins the adventure of a lifetime for the three companions. They are determined to learn more about the legends, which have caused the people of Highland Boy to be fearful of the thundershowers, whose brilliant flashes of lightening and building-shaking thunder, come to town about the same time each year. The elders, the town marshal and doctor, relate stories of the old days: Of a romance between ill-fated lovers, whose mishaps in days gone by, have led to the mysteries that cause the haunting, screeching laughter and wails of despair that accompany the thunder and lightening. Determined to end the grief of the lovers and end the troubles that plague the town, the adventurers set out to learn all they can and rid the town of its nightmarish history. They bravely face the missions that they have laid out for themselves in order to achieve their goals. Finally, in the coroner's dark, rat-infested warehouse, the adventurers find the key that will help them solve the mystery of the haunted mine and bring peace to their beloved town. They vow to return the key, a message of love, to its rightful place, in the haunted mine.

Boone and Cali volunteered to help transform an old mining town into a summer camp for their church. But that was before they stumbled onto the secret underground tunnels, the ghost stories, and the legendary Madman of the Mine. Could a camp really be haunted? It was up to them to solve this mystery and turn Camp Fear into Camp Fearless!

Dylan helps his dad retrieve a fortune in silver allegedly stolen in the early part of the twentieth century.

The corresponding Teacher's Guide is a page-by-page supplementary resource that gives you additional activities to enhance the student's learning opportunities by using cross-curricular materials including discussion questions, reproducible vocabulary, science, geography and math activities. Each Teacher's Guide turns you into the expert-we've done all the research for you! This comprehensive resource enhances the many dramatic learning opportunities students can gain from reading this mystery by Carole Marsh. The supplementary Teacher's Guide includes: Š A chapter guide of additional information, trivia, historical facts, and more to help teachers be "Experts!" Š Activity ideas that make the book come dramatically to life for young readers! Š The author's additional comments and thoughts about the subject Š Some reproducible activities Š Great out-of-the-box ideas for activities.

A young boy searches in the mountains near the Hudson River for the source of the silver ore that he saw in the Spanish pirate's sack.