Codes are simple sentences that show secretive Cahill activity hidden in the books. The following are the codes in book order.

Series 1

Maze of Bones: Anne Cahill did not drown. Cover message: Ireland

One False Note: Look to India. Cover message: Gideon

The Sword Thief: The competition is about Hope.

Beyond the Grave: Alistair was there the night they died.

The Black Circle: Remember MadeleineOlivia had another.

In Too Deep: Find the other Ekaterina scientist who came in too close.

The Viper's Nest: Grace=Madrigal leader, There is a Madrigal watcher.

The Emperor's Code: Madrigals are behind everything. They lay out the path the others will walk. The end is coming.

Storm Warning: He didn't tell them everything. (Coordinates for Jamaica)

Into the Gauntlet: The Cahills aren't the only ones looking for the clues, the Vespers are coming.

Vespers Rising: Time is running out for the ring keeper; Find Medusa.


Series 2

The Medusa Plot: GuardianDamien is alive; The mother was murdered.

A King's Ransom: I will move the earth; Sandreckoner

Dead of Night : Mole; Timbuktu; Manuscript Voynich

Shatterproof : Magellan, Isabel Kabra (picture), knotmole

Trust No One : Damien Vesper; The father is dead

Day Of Doom : Natalie, One other has the serum

These codes are only from the standard series story books. There are more from extra books.

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