After stumbling upon a mysterious amulet in an Egyptian tomb, turn-of-the-century teen Theodosia “Theo” Throckmorton develops magical powers, throwing herself – and her family – into a perilous ancient mystery.

Fearing her father has been cursed, Theo recruits Henry, street magician Will, and Egyptian princess Safiya in her search for a cure, leading them to the home of a mysterious thief – and a newfound world of magic and danger.

After her experiments with ancient Egyptian magic go a little too well, Theo must race against the clock to save Safiya and her father from certain doom.

Theo’s plan to make her parents’ museum safe from dark forces is thrown into chaos when Will and Henry are whisked away by an ancient portal.

Sinister forces emerge while Theo and her friends take time out for a table-tennis tournament at the Penny Arcade.

As Theo witnesses a change in the Eye of Horus’ magic, the Throckmortons receive a visit from an important official, and Henry tinkers with an explosive new invention.

After a magical vision leads Theo to suspect that the Eye of Horus is under threat, she must contend with the Serpents of Chaos and their masked leader, Yaret.

Theo and Will work to contain a dangerous beast, while Henry and Safiya search for a way to recover the Eye of Horus from the Serpents of Chaos.

As the total eclipse and the Throckmorton’s fundraising party collide, Theo and her friends must work to keep the ever-enigmatic Eye safe from the Serpents.

After the Eye whisks them off to Egypt, Theo and Safiya race to reach the Staff of Osiris before the Serpents of Chaos catch up. Back in London, Will and Henry make use of a magical rope.

After securing the museum against the Serpents, Theo uses her heightened abilities to get an edge in botany class. Later, Henry faces off against a dangerous enemy.

With the Serpents of Chaos’ magic now unleashed unto the world, Theo and her friends race to break Yaret’s spells before chaos rules forever.

A statue with a will of its own leads Theo and her friends to a brand-new mystery.

Can Theo save Will and Safiya who are trapped inside a secret room?

Theo tries to decipher the secrets of her grandfather’s journal with disastrous results.

Theo must race to save Will, Safiya and Henry who have been swept into a dream world.

The pyramidion’s power turns Will’s dreams of fame into a magical nightmare.

It’s Theo’s fifteenth birthday party but someone is after the pyramidion’s secret.

Can Theo prevent Aapep escaping his prison beneath the Great Pyramid of Khufu?

Theo and Will try to discover what the Serpents of Chaos are planning.

Someone or something has been stealing magical power from the museum.

Aapep is loose in London and the museum’s mummies have developed a mind of their own.

An accidental body-swap forces Theo and Safiya to pretend to be each other.

Will returns to Aapep’s lair, while Aapep forces Nigella to seek out and destroy Theo.

Theo and friends must face Aapep himself if they’re to save the world from destruction.