While the Thea sisters are at the excavation site of a dig at Hierapolis, Professor Brenninger unearths a series of priceless and very old figurines, but the Thea Sisters think the discovery may be a scam and investigate.

Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle.

"Marie-Grace can't wait to begin her journey up the Mississippi River with her father. The steamboat they're traveling on is the biggest and fanciest boat Marie-Grace has ever seen. It's crowded with all sorts of interesting passengers, including Wilhelmina Newman, a girl her age. Wilhelmina is traveling alone, and she's carrying a secret in one of her trunks--clues to hidden Gold Rush treasure. Marie-Grace and Wilhelmina have to unravel the clues...

"The Robber Girl has a good dagger. Its voice in her head is as sharp as its two edges that taper down to a point. Today, the Robber Girl and her dagger will ride with Gentleman Jack into the Indigo Heart to claim the gold that's rightfully his. But instead of gold, the Robber Girl finds a dollhouse cottage with doorknobs the size of apple seeds. She finds two dolls who give her three tasks, even though she knows that three is too many tasks. The...

¿Qué es? Adivina con estas divertidas rimas todas las partes de tu cuerpo. Desde la cabeza, pasando por el tronco, hasta llegar a los pies. Por dentro y por fuera, ¡tu cuerpo es una máquina perfecta! ¡Atrévete a descubrirlo! Make a good guess from which part of the human body from the riddles.

"With time running out as the twelve nights come to an end, Kay must puzzle out the riddles laid before her in this new land of Bithynia--and help restore the world to order--before her dad and sister are gone forever."--

Enslaved in Kipchak Khanate, Jinghua has lost everything: her home, her family, her freedom . . . until the kingdom is conquered by enemy forces and she finds herself an unlikely conspirator in the escape of Prince Khalaf and his irascible father across the vast Mongol Empire. On the run, with adversaries on all sides and an endless journey ahead, Jinghua hatches a scheme to use the Kipchaks' exile to return home, a plan that becomes increasingly...

"When Celia and Tyrus discover the four lost diaries of Charles Dodgson (a.k.a. Lewis Carroll), they are pulled into Wonderland and must solve riddles and puzzles to stop the Queen of Hearts from opening a door and taking over our world"--