Hotep Cavern

Hotep Cavern is a location in Qattara Depression. Sited east of Siwa, the cavern is where Bayek and Aya found love and would escape to. Upon returning to the site later in his life, Bayek reflected on his relationship with Aya, and pondered how it would be appropriate that the site of their beginning would also be where they would end. This would turn out to be true: after the deaths of Bayek and Aya, Hotep Cavern was the site of their tomb.

In the modern day, Layla Hassan ventured to Hotep Cavern to locate a relic of interest, but instead stumbled across the mummified remains of Bayek. She set up her Animus at this location to explore the genetic memories of Bayek.

Location
The cavern located east of Siwa. Surrounded by red sands, the cavern is a welcome place of shelter. However, visiting the cavern will reveal a pack of hyenas. The interior of the cavern is sand and rock, with stalagmites and stalactites, some of which can be climbed. The cavern contains two loot items, including random legendary item.

In the modern day, Layla comments that the site has largely unchanged since her visit as Bayek. There is more vegetation inside the cavern, and the interior is largely blocked from the sun, necessitating Layla to erect several lights hooked up to a generator.

The biggest change between the time periods is the construction of Bayek's tomb. Modest in size and detail, the tomb contains several small chambers, including Bayek's sarcophagus. Aya's sarcophagus is initially missing, but Layla witnesses Aya's image through the Bleeding Effect, leading her to where the sarcophagus had fallen due to a partial collapse of the tomb. Layla is able to explore an underground current beneath the cavern.

Trivia

 * Hotep Cavern is a "secret" location, easily missed by players aiming for the "Old Habits" achievement. Hotep Cavern is one of the few locations of interest in the desolate Qattara Depression, and does not appear on the map after synchronising. Discovery is based on clues written on a stone tablet in the modern-day cavern.
 * Depending on the player's progress in the story, Layla will either have the stone translated, or be able to read it herself through the Bleeding Effect.
 * The "relic of power" mentioned in the tablet is supposedly the random legendary item, not an Isu artifact, as is more common for "relics".
 * If the player visits the site as Bayek, in the modern time Layla will mention that she "has been here before...as Bayek" when she goes outside.