𝐁𝐞𝐲𝐨𝐧𝐝 𝐭𝐡𝐞 𝐆𝐫𝐚𝐯𝐞 (𝐓𝐡𝐞 𝟑𝟗 𝐂𝐥𝐮𝐞𝐬 , 𝐁𝐨𝐨𝐤 𝟒)

Author: Jude Watson, 190 pages, hardcover.
Betrayed by their cousins, abandoned by their uncle, and with only the slimmest hint to guide them, fourteen-year old Amy Cahill and her younger brother, Dan, rush off to Egypt on the hunt for 39 Clues that lead to a source of unimaginable power. But when they arrive, Amy and Dan get something completely unexpected – a message from their dead grandmother, Grace. Did Grace set out to help the two orphans . . . ore are Amy and Dan heading for the most devastating betrayal of them all?