Dr. Underhill’s office is one place that you have to visit in order to progress further in the mission called “New Growth” in Control Resonant. In order to get to Dr. Underhill’s office, you will need to have a Clearance Level 6 Keycard as well as access to the Executive Sector elevator.
Investigate Underhill’s Office in Central Executive

The quest will unlock when you get Underhill’s resignation letter from the FBC outpost that is located on the rooftop in The Park. Make sure you collect the Clearance Level 6 Keycard while there.

To progress in this quest, you need to have access to the elevator, which leads you to the Executive Sector. Ensure that the New Growth quest is still active and your objective is “Investigate Underhill’s Office in Central Executive.” To start, open the map in Downtown and locate Downtown 4. Then go upstairs into the building with the sector elevator.
Head to the elevator and make use of the buttons. Select “Executive Sector” as one of your destinations. Although some floors might still be restricted, you will find the “Executive Sector” option open.

From there, get out of the elevator and head into the passage. Proceed through the “Central Executive” sector by making your way down red carpeted passages until you get to “Executive Research.” After that, head down to the lower level where you will find the stairs going up. You will arrive at Office 06 on the upper floor. That is the office of Dr. Underhill. Open the door using your Clearance Level 6 Keycard.
Collect the Documents in Office 06

After going inside, make your way to the desk of Dr. Underhill. There are two vital objects in this area. Get the first one – Underhill’s Personal Notes in order to get the document. After that, click on the Welcome Letter. After opening it, you will receive Underhill’s Apartment Key and will learn about her apartment, which is situated at 140 Fletcher Ave. With the key in hand, you can now continue to the next part of the New Growth quest.
