Aegis

The girl rolled her eyes. ‘Fine. Leave it to me and Aegis.’
She tapped her wrist and her silver chains transformed flattening and expanding into a huge shield. It was silver and bronze, with the monstrous face of Medusa protruding from the centre. It looked like a death mask, as if the gorgon’s real head had been pressed into the metal. | didn’t know if that were true, or if the shield could really petrify me, but | looked away. Just being near it made me cold with fear. | got a feeling that in a real fight, the bearer of that Shield would be almost impossible to beat. Any sane enemy would turn and run.
The girl drew her sword and advanced on the sarcophagus. The shadowy ghosts parted for her, scattering before the terrible aura of her shield.

SoM ch.13

This gave Thalia and Grover a chance to advance from behind - Thalia wielding her magic Shield, Aegis.
If you’ve never seen Thalia run into battle, you have never been truly frightened. She uses a huge spear that expands from this collapsible Mace canister she carries in her pocket, but that’s not the scary part. Her shield is modelled on one her dad Zeus uses - also called Aegis - a gift from Athena. The shield has the head of the gorgon Medusa moulded into the bronze, and even though it won’t turn you to stone it’s so horrible most people will panic and run at the sight of it.
Even Dr Thorn winced and growled when he saw it.

TTC ch.2

The lion swiped the capsule and tipped it on its side, spilling the Hunters off the back. Grover played a frantic, horrible tune, and the lion turned towards him, but Thalia stepped into its path, holding up Aegis, and the lion recoiled. ‘ROOOAAAR!’
‘Hi-yah!’ Thalia said. ‘Back!’
The lion growled and clawed the air, but it retreated as if the shield were a blazing fire.

TTC ch.10

Thalia went straight for Luke. The power of her shield was so great that his dragon-women bodyguards fled in a panic, dropping the golden coffin and leaving him alone.

TTC ch.17

The next thing I(Luke) knew, I was sprawled in the traffic circle, coughing and gasping as a tower of fire roared into the evening sky. My throat burned. My eyes felt like they’d been splashed with acid. I looked for Thalia and instead found myself staring at the bronze face of Medusa. I screamed, somehow found the energy to stand, and ran. I didn’t stop until I was cowering behind the statue of Robert E. Lee. Yeah, I know. It sounds comical now. But it’s a miracle I didn’t have a heart attack or get hit by a car. Finally Thalia caught up to me, her spear back in Mace canister form, her shield reduced to a silver bracelet.

DD pg.54


‘Perseus Jackson!’ Thalia yelled, storming towards me. She smelled like rotten eggs, and she was so mad that blue sparks flickered on her armour. Everybody cringed and backed up because of Aegis. It took all my willpower not to cower.
‘What in the name of the gods were you THINKING?’ she bellowed.
| balled my fists. I'd had enough bad stuff happen to me for one day. | didn’t need this.

TTC ch.6