It's never too early to start building thinking skills--skills that will spill over into other areas of the curriculum and into real life. "Primarily Logic" consists of a series of units designed to introduce logical thinking to young students. It is an excellent, easy-to-use starting point for teaching well-established forms of logical thinking. Each skill is introduced with examples, and then worksheets give students an opportunity to practice the skill. Group lessons and worksheets provide practice in:

• finding relationships,
• analogies,
• thinking logically using "all" and...

In the notorious Bermuda Triangle, a private jet vanishes without a trace, taking with it scientists working for the world-famous philanthropist Joaquin Abell. Meanwhile, Captain Kyle Sears is called to a murder scene in Miami. A woman and her daughter have both been shot through the head. But within moments of arriving, Sears receives a phone call from the woman's husband, physicist Charles Purcell.
"I did not kill my wife and child," he says. "In less than twenty-four hours I will be murdered and I know the man who will kill me. My murderer does not yet know that he will commit the...

"A combination of mystery, suspense, and unspeakable horror" (R.L. Stine), this bone-chilling thriller explores the question: What price would you pay for eternal life?

WOULD YOU KILL TO LIVE FOREVER?

When the body of a gunshot victim rolls into the Santa Fe morgue, it should be a d ay like any other for medical investigator Lillian Cruz. Yet upon examination, the corpse appears to be more than a hundred years old with smallpox scars, and an odd wound protrudes from the victim's leg. Lodged in the femur, under decrepit scar tissue, is a bullet shaped like a musket...

In the tradition of books by Michael Crichton and James Rollins, Dean Crawford has written a fast-paced and thrilling debut that combines science, suspense, and ingenious speculation to create an action-packed blockbuster not to be missed.

ARE THEY ALIENS . . . OR ANGELS? In the remote desert depths of the Middle East, archaeologist Lucy Morgan finds a seven-millennia-old tomb holding the bones of a mysterious being, but the price she pays for her discovery could easily be her life. Because somebody will stop at nothing to possess the secrets the tomb reveals.

At the...

Ancient cultures on continents separated by thousands of miles simultaneously developed identical technologies thousands of years ago despite never having encountered each other. Their legends contain near-identical descriptions of fiery objects that arrived from the sky, of wise beings that brought them knowledge, and of a great flood that destroyed their cities long, long ago. Modern archaeology dismisses these legends as myths. Ethan Warner knows better. Peru, 1571: On a mountain high in the Andes in the last days of the Inca Empire, six children are ritually sacrificed to the Inca...