Annabeth's Yankees Cap

New-york-yankees-baseball-cap-popover.jpg 's Magic cap]] Annabeth Chase has a magical Yankees cap which makes the wearer invisible.

History
Annabeth's mother, Athena, gave it to her for her 12th birthday. The cap is known that it is similar to Hades' Helm of Darkness. It has had many life-saving uses, quite notably helping Percy to escape the Furies on a bus in The Lightning Thief.



Use
In battle, or in any circumstance as a demigod, the hat is very useful. When worn, it makes the user invisible. That in and of itself would not make it very powerful, but ingenuity on Annabeth's part makes it invaluable.