Martha Freeman

Seven-year-old Tessa and ten-year-old Cammie, the first female president's daughters, investigate when gold is discovered on the White House grounds and Tessa's piggy bank goes missing.

Eleven-year-olds Luis and Maura investigate the cause of a long-term, city-wide power outage in Hampton, New Jersey. Includes facts about electric power and instructions for assembling an emergency kit.

Kitty fights tooth and claw against any kind of change, but when he goes to kindergarten, he finds that new experiences can be a positive thing.

Answers many questions about participating in a march, including what to wear, how to get there, and why marching is important.

"Secret Cookie Club members Grace, Emma, Olivia and Lucy are thrilled to be back in Flowerpot Cabin with their beloved counselor, Hannah. But when a mysterious letter arrives, Hannah is plunged into despair. After puzzling out the contents of the letter, the campers make a plan to help Hannah--a plan that requires a daring mission to boys camp and a big batch of campfire cookies"-- Provided by publisher.

"Mark Kelly and his twin brother are back for more outer space adventure, this time fixing up an abandoned Apollo command module and taking off to rescue a Russian cosmonaut who is stranded in space"-- Provided by publisher.