Key points of Map of Secrets in Black Cove (level 2) - Divinity: Original Sin
Secrets from bought maps
Precious items / chests with valuable content
Secrets from bought maps
Type of a secret: Chest
Comment: To open it need the key, which you'll find near the ship wreck in the north.
Type of a secret: Key
Comment: It's the key to open chest near the bridge. To find it go behind the ship wreck and hold Alt button, to highlight object.
Type of a secret: Skillbook
Comment: After fight you'll be able to take the skillbook in the corner.
Type of a secret: Chest
Comment: Pontius's chest - the key will be lying near defeated enemies.
Precious items / chests with valuable content
1 – Type of an item: Ruby
Comment: On the edge of the pier you can find a ruby.
2 – Type of an item: Chest
Comment: Pushing button on the right from the stairs a chest will fall from the sky.
The key to the chest
Key
To see the key (2) use the item highlighting button (default - Alt). You have to go behind the ship - the object will be lying in the corner, near some bushes. You won't be able to open the chest (1) without it. The key fits the one located in front of the wooden bridge. Three crabs will attack you when you will try to collect the key.
A chest from heaven
When pressing the wrong switch, most of the times something bad will happen. There is however one switch, located on the south, to the right of the stairs, which causes a chest the fall near you. It is not a trap - the items in the chest are random, but usually quite valuable.
Rubin
The ruby on the pier
At the end of the platform, you will find a ruby. You may have some trouble noticing it, so use the item highlighting button (default - Alt). You can either sell the ruby for quite a lot of money, or use it for crafting.