Now that you've found Crow, your next task in Destiny 2's The Final Shape is to reunite the Vanguard fireteam. First up is Ikora, whose crashed ship Crow has discovered nearby.
Destiny 2: The Final Shape – Unraveling the Light and Darkness Puzzle (Mission Exegesis)
Finding Ikora is the main objective of the Exegesis mission, but along the way you'll encounter a few trick rooms with some interesting mechanics. Like the previous missions, this is no simple beat 'em up, you'll need to think fast with the help of Motes, Keys and a relic from a time long past to get through the Pale Heart.
Here's how to complete the Exegesis quest in Destiny 2's The Final Shape.
The Exegesis mission begins by leaving the campfire in The Refraction in search of Ikora's ship. You'll come across a blocked doorway with a Crystalline Key. This is the first of several mechanics you'll need to learn for this mission. Pick up the key and carry it to the lock to open the door.