Birthright

Start the quest by heading south from where you left Beka to find bodies. Bayek will decide to speak with the embalmer.

Return northwest to find the embalmer in the same area where Beka rests. Speak to him about the bodies to learn about Iras, the sole surviving relative.

Travel north from Yamu, following the road across a fordable body of water, and turn uphill west past a Vulture Lair.

Dismount and sneak towards the house as you approach, as soldiers (levels 8-9, with a level 10 specimen) will be present. Use Senu to spot enemies and mark them. Take them out using stealth, archery, or by luring them to you.

Once the last foe falls, Iras will appear and explain the story, pointing you to a villa to the north.

Ride east back near the Vulture Lair, then follow the coastal road north, passing a Hippo Lair, until you reach the search radius for the Lakeside Villa Outpost.

The objectives here are to kill the captain (level 9) and loot a treasure chest. The main quest objective is to find information on a table near the tents in the courtyard.

Use Senu to mark the captain, his subordinates (levels 7-8), the alarm brazier (on the northeastern watch tower), and the quest objective.

Infiltrate the outpost, which has about a dozen enemies. Disable the alarm and use a bow to pick off targets, or thin the herd by eliminating guards near the gates.

Alternatively, use the ballista atop the western wall for ranged attacks.

After eliminating the guards, search the tents for a large chest, then read the letter on the table outside one of the tents to identify the conspirator and his location.

The Papyrus Puzzle "Fertile Lands" refers to a location northwest of the temple of Sekhmet in Yamu: a date orchard surrounded by desert with a fully-enclosed stone fence on the western end. Search the tall grass inside the fence to find the treasure.

To find Sophronios, follow the main road north from Yamu, turn east, and cross the bridge to the outskirts of Alexandria.

Once you pass the arches into the city, dismount and use Senu to locate Sophronios in a house near the market or in the market itself.

Sophronios's house is a restricted zone guarded by three level 9 soldiers. You can snipe him through the door from the balcony behind his house or from a nearby roof if he is in the market.

Assassinate Sophronios to complete the quest.