Friendship

Bartimaeus, everyones favorite (wise-cracking) djinni, is back in book four of this best-selling series. As alluded to in the footnotes throughout the series, Bartimaeus has served hundreds of magicians during his 5,010 year career. Now, for the first time, fans will go back in time with the djinni, to Jerusalem and the court of King Solomon in 950s BC.

On a snowy night, Cara and her grandmother are pursued into St. Christopher's church by an unknown man. Clutching her grandmother's mysterious amulet, and following the old woman's instructions, Cara escapes their pursuer and falls into Luster, the world of the unicorns.

In The Lost Hero, three demigods named Jason, Piper, and Leo made their first visit to Camp Half-Blood, where they inherited a quest:

Seven half-bloods shall answer the call,
To storm or fire the world must fall.
An oath to keep with a final breath,
And foes bear arms to the Doors of Death.

Annabeth is terrified. Just when she's about to be reunited with Percy - after six months of being apart, thanks to Hera - it looks like Camp Jupiter is preparing for war. As Annabeth and her friends Jason, Piper, and Leo fly in on the Argo II, she can't blame the Roman demigods for thinking the ship is a Greek weapon.