Seven-year-old Tessa and ten-year-old Cammie, daughters of the first female president, and their dog Hooligan, investigate when an ostrich egg is substituted for a rare dinosaur egg on loan from another country.

When the Secret Service squashes yet another chance for the president's daughter, Audrey, to make any new friends, Audrey discovers former first daughter Alice Roosevelt's hidden diary, which gives Audrey endless ideas for having fun--and more problems than she can handle.

"The president's daughter has been kidnapped by the elusive and lethal Ghost Cell. Quest (Q) and Angela are in hot pursuit with vicious winds and blinding rain thwarting them at every turn. It's a desperate high stakes chase"--

Dragged into the political turmoil of a presidential election year, fourteen-year-old Cooper Jewett, who runs a New Hampshire dairy farm since his grandfather's death, stands up for himself and makes it clear whose first boy he really is.

Eight years after being kidnapped Addie Webster, now sixteen, resurfaces under mysterious circumstances, significantly changed, and her childhood best friend, Darrow Fergusson, is asked by a national security advisor to spy on her to uncover whether she is a threat to her father's Presidency or the nation.

"For his second mission with Pandora, Linc Baker must go deep undercover in Washington, DC, using American spy history to catch a government mole bent on taking out the president"--

"Mice siblings who live in the White House prepare for a new president to move in"--

Jack and Annie travel to a monastery in the Swiss Alps where, with the help of St. Bernard dogs and magic, they seek the second of four special objects necessary to break the spell on the wizard Merlin's beloved penguin, Penny. Abe Lincoln at last!: The magic tree house whisks Jack and Annie to Washington D.C. in the 1860s where they meet Abraham Lincoln and collect a feather that will help break a magic spell.