Lost Boys is a Side Mission located in the Lesser Zone in STALKER 2: Heart of Chornobyl. Read on to see the Lost Boys mission location, its detailed walkthrough, and all of its rewards!

Lost Boys Mission Overview and Rewards

Location and Mission Info

Lost Boys Mission Info
Starting Location	Lesser Zone
Quest Giver	Lens
Mission Description
Lens, the technician from Zalissya, asked me to search for a group of diggers led by Mastiff. He sent them to investigate some old stashes found in PDAs belonging to deceased stalkers. Lens is worried that the diggers might have been ambushed at one of these spots. He suggested starting the search for Mastiff and his team at the location of their last run.

Completion Rewards

Completion Reward
Rookie	・650 Coupons
Stalker	・500 Coupons
Other Rewards
・Rubber Layer Blueprint (Helped the Ninth)

You can get a fixed amount of Coupons for completing this mission, given by Lens. You can get an additional reward from The Ninth if you help him fight the Stalker Leader Dew and his group, which is the Rubber Layer Blueprint.

Lost Boys Walkthrough

List of Objectives
1	Get to the Location of Mastiff's Group's Last Run
2	Look for the Survivors
3	Find Mastiff
4	Find Out What Happened to Mastiff's Group
	Option 1			Option 2
	Ask About Mastiff's Group			Attack The Ninth
5	Talk to the Stalker Leader
	Option 1		Option 2		Option 3
	Protect the Ninth		Leave the Place		Join Dew (Leader)
6	Return to Lens

Get to the Location of Mastiff's Group's Last Run

Head south from Lens's location and go to the last location of Mastiff's group. You can follow the quest marker to reach it without getting lost. You should be able to see an underground structure once you get there.

Look for the Survivors

Restore the Power

Once inside, enter the hallway on the right and look for a bag. Loot the Fuse from the bag and put it on the Circuit Breaker on the left. It will help you leave the place quickly once you're done with the objectives here.

Before progressing, you can go back to the entrance and walk inside the newly opened room to get the UDP Compact pistol, the Aurora Mask and some consumable items.

Pass through the Electric Anomalies

Continue following the hallway until you reach the room with Electric Anomalies. You can throw a bolt on each Electric Anomaly to cancel them out for a short time and create a safe path to the next room.

Rescue Max

You should be able to hear Max Saturday once you pass through the electrified room. Secure the area first and then help him recover.

Talk to him afterward to learn more about the situation and get info on Mastiff's location.

Find Mastiff

Leave the Underground

Open the door behind Max to leave the underground. If you haven't put the power back on, return to the hallway before the Electric Anomaly room to get the fuse and place it on the circuit breaker.

You will encounter Electric Anomalies on the way out as well, so throw a bolt again to remove them temporarily.

Head Southeast to Find Mastiff

Travel southeast once you're out to find Mastiff. You can follow the quest objective on the map to reach him quickly.

Take Out the Dogs

Once you reach the house where Mastiff is located, clear the area first as it is infested with hostile dogs. You will encounter four of them at once, so take them out with caution.

Go to the Shack to Enter the House

Head over to the Shack to find the entrance to the house. Follow the path to the ground until you reach the house. Climb at the top and talk to The Ninth.

Find Out What Happened to Mastiff's Group

Choices
Ask About Mastiff's Group	Attack The Ninth

You can decide to ask about Mastiff's Group from The Ninth, or you can attack him immediately. Whatever you choose will have a slight change to the mission's objective, so choose wisely.

Ask About Mastiff's Group

Talk to The Ninth and ask about what happened with Mastiff's group. A Stalker Group will appear after talking to him. They want to hunt down The Ninth, and you can decide to help him or return to Lens immediately to report.

Attack The Ninth

You can attack The Ninth before or after knowing what happened with Mastiff's group if you want to. Doing so will make him hostile, but you will be able to avoid a fight against the Stalker Group outside.

You can go back to Lens after this to complete the mission.

Talk to the Stalker Leader

Choices
Protect the Ninth	Leave the Place	Join Dew (Stalker Leader)

A Stalker Group will appear after talking to The Ninth. If you killed The Ninth during the conversation, you won't have this objective and you can go back to Lens to end the mission.

Should You Help the Ninth or Dew?

Protect The Ninth

You can talk to the Stalker Leader outside, Dew, and choose to protect The Ninth against them. Helping The Ninth will lead into a shootout, but you will be rewarded with a Rubber Layer Blueprint by talking to him after the fight.

You can also take their items and use them for yourself.

Leave the Place

You can leave the place if you don't want to help The Ninth. Just choose the [Leave] option when talking to Dew.

Leaving the place will count as not helping The Ninth, which means you won't get the Rubber Layer Blueprint reward from him.

Join Dew (Stalker Leader)

You can side with Dew and his team to kill The Ninth instead of protecting him or leaving the place. There won't be any benefits or rewards for doing this, but this will help you avoid fighting several people.

Return to Lens

Return to Lens to complete the mission and get your rewards. You will receive 500 Coupons from him.

STALKER 2 Related Guides

List of All Side Missions

All Side Missions

Side Missions
Lost Boys	The Poppy Field
Dogfight	Shift Change
Dangerous Visitors	Stalker Wisdom
Invisible Nets	Piece of Cake
Warlock's Debtor	An Errand for Warlock
No Honor Among Thieves	A Sign of Hope
Nightingale's Hunt	The Road to Salvation
Budmo!	A Light at the End of the Tunnel
A Heavy Burden	Deceive the Deceiver
The Freedom Colosseum	Just Business
Three Captains	Unhealthy Competition
In the Name of Science	Bullseye
Business with Owl	Uninvited Guests
A Big Score	Joke Quest
All That is Left	On the Edge
Black Sheep	The Key to Freedom
Taking Back What's Mine	A Job from Boozer
For Science!	The Mysterious Case
A Matter of Honor	An Order from Harpy
A Job for Sidorovich	An Errand for Hera
Shock Therapy	The Sound of Music
A Job for the Barkeep	Save Vova Amalgam
Save Vadyk Firecracker	Save Doctorant Zhytnychenko
Yurko Fantomas Side Mission	Gray's Last Hunt
Busting Myths	Car for Sale
Save Vovchyk Koldyba	The Side Hustle
Save Tymchenko	-

Best Side Missions Worth Doing