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Silent Grove: Zhailing Islet is an Exploration Mission found in Jingyu Valley in Arknights: Endfield 1.0. Check out how to unlock this mission, enter the correct Guiding Lights sequence, how to fix Core W1, and see all its rewards in this guide!

Silent Grove: Zhailing Islet can be unlocked after completing the Silent Grove: The Beginning quest, where you'll be fixing a raft, rescuing injured people, and restoring three Hydrocubes for a core.

In Jingyu Valley, start by going to the objective marker. When you reach the Core, use your Scan to find the footprints. This will allow you to trigger more markers along the way, all of which you need to follow.
| How to Find Footprints | |
|---|---|
| 1 | ![]() After reaching the Core and using your scan, turn to your left for the second marker and scan again. |
| 2 | ![]() Follow the objective closely and you will see a crooked tree ahead of you. When you reach the area, turn left again for the third marker. |
| 3 | ![]() On the third marker, the trees in the forest will block and sway on your right, indicating your next passage. Head over to the Guiding Lights on the way down and activate them. |

Since the team is trapped on this portion of the forest, you will need to activate the Guiding Lights in the correct sequence. Failing to do so would lead the lights to turn off simultaneously, hindering your progress.
| Guiding Lights Correct Sequence | |
|---|---|
| 1 | ![]() Go to the first light on the stairs, near the trees that just swayed. Press Interact to activate the light. |
| 2 | ![]() Then after that, activate the second light next to it. But don't go down further after activating it. Instead, go back up the stairs where you came from. |
| 3 | ![]() Circle back around the protruding rock in the middle, and you will see a glowing post on the right side. |
| 4 | ![]() From there head straight for the monolith rock ahead, on the right, in front of it, activate the third light. |
| 5 | ![]() After activating the third light, circle around again to see the fourth light. |
| 6 | ![]() Head straight and you will see the fourth Guiding Light on the right. Activate the light to create the path. |

To look for the missing people, simply follow your objective marker. This will guide you in reaching your destination. However, you will need to fill the mechanism above with Clean Water to activate the bridge. Select Ferrium Bottle and press Pour.

When you arrive at the other side, defeat five enemies to save the trapped Stockade Resident. Clearing the enemies off will trigger a conversation between the team and Hong Ni.

Your next objective would be to get close to the Core W1. The best way to arrive there is to select the TP Point just south of Zhailing Islet. Approach the core when you arrive.

The core will then need to be fixed. This is done by navigating three Hydrocubes that support its function. Make sure you have Clean Water in store for this objective.
| How to Restore Hydrocubes | |
|---|---|
| 1 | ![]() Aim at the nearest Hydrocube's heated section and start spraying. The cube will turn green to indicate that it's been fixed. |
| 2 | ![]() Go to the second cube on the right. You can find this cube floating above a wooden platform. |
| 3 | ![]() Start spraying on the second cube, which will finish 2/3 of your task. |
| 4 | ![]() A third cube is located across the river. However, you must get close to accomplish the objective. |
| 4 | ![]() Stand by the dock and wait for a huge lily pad to come to you. That way, you can cross to the other side and get near the Hydrocube. |
| 4 | ![]() When nearby, aim your spray again at the third Hydrocube and spray on it. |
| 5 | ![]() Return to the core and turn it on by pressing the Activate button. This will complete the objective and the overall mission. |
| Total Quest Rewards |
T-Creds x3700 |
Protohedron x2 |
Oroberyl x60 |
|---|---|---|
Arms INSP Kit x11 |
||
By completing the mission, you will also be rewarded with 240 Operational EXP.
| Mission Type | Exploration Mission |
|---|---|
| Location | Wuling, Jingyu Valley |
Silent Grove: Zhailing Islet is an Exploration Mission that's located in Jingyu Valley. Finishing the quest can also unlock the mission, Silent Grove: South Hill.

Silent Grove: Zhailing Islet Mission Guide



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