The Silver Box of Ix Chel

The Silver Box of Ix Chel  is a collectible photo found in Shadow of the Tomb Raider. It is part of Lara's Notebook collection, gained automatically by playing through The Hidden City.

Information
According to legend, the Key of Chak Chel and the Silver Box of Ix Chel were created in the heavens for one purpose: to destroy and restore the sun.

''The ritual can only be performed during an eclipse. Once the ritual is completed, the chosen Avatar will hold the power of the sun within them. Having become the god of creation, Kukulkan, they must sacrifice and release that power to restore the sun.''

But the Silver Box tempts people with visions of an idealized world they could create with that power: a fantasy of their own mind, an entirely new reality only at the cost of destroying this one.