Secret of the Lost Dragons - Guardians of Time, #2

Traveling across space and time can take you to some dangerous places. Eleven-year-olds Jake and Ava are seasoned time travelers stuck babysitting their four-year-old cousin, DeeDee. After a day at the pool, DeeDee stoops to touch a strange coin in their driveway-and vanishes!Oh, no! What's there to do but touch the coin too?The twins find DeeDee in a narrow desert canyon-facing a huge, fierce dragon.
Clearly, it's time to leave. Jake and Ava grab DeeDee's hands and reach for the time-travel keys in their pockets. But their pockets are empty!A family-friendly action-adventure for ages 8-11, Book 2 in the Guardians of Time series. Book 1 was named winner of a Purple Dragonfly Award and also a finalist for the prestigious Selah Award for Christian Fiction.  Book 1 measured at Lexile® reading level 550L.---About Book 1:"Ever since my son has read that book he is wanting to read more.
(Smiley face) I am so grateful."--Mrs. Kennedy."A wholesome romp through time, and readers learn a little history about Vienna and Lyon along the way." -Author of the Andi Carter books, Susan K. Marlow. "This is a fun journey of laughter and learning. The mystery includes a pirate key, an ancient clock shop, forgiveness, truth, new friends and family ties that warm the heart."-Azalea Dabill, author."I really think it's a great book.
It's interesting and definitely engaging."-E. S., a homeschooler age 10.----Phyllis Wheeler, a homeschooling veteran, loves time-travel stories. She writes books for kids that feature strong families and a moral compass. She and her husband live in St. Louis, where she tends her milkweed garden and hopes for butterflies. Vitória Gurgel is a court stenographer and illustrator living in Amapá, northern Brazil.
She enjoys thinking of herself as a Rain Land Illustrator, as "Amapá" is a word of Nuaruaque origin, which means Land of Rain. She loves the local culture, açaí, and is a big fan of Marabaixo music and dance.