Dead Island Riptide: History Lesson
About the mission:
- Difficulty - 2/5
- Employer: Dr Kessler (BioSphere Laboratory)
- Reward: Golf Club

This mission appears when you complete the main quest Dr Kessler. Talk again with the scientist, who'll ask you to look for any useful items in the tunnels.
Enter The Tunnels

You can start this mission when you get to the sixth chapter, when an access to The Tunnels is unlocked. Head for Santa Maria Mission and use an entrance next to the pump.
Find traces for Kessler

In The Tunnels you have to find three items. You find first trace just after using a ladder leading to the lower level of tunnels. Approach the green goop.
Take a sample of toxic chemicals

Carefully take chemical sample without touching the substance.
Find an anomaly

Second trace is just after the one above. Turn left, opposite to where the game shows you to go. Eliminate zombies and your way and get to the new spot of goop.
Take a sample of tissue

This time examine a body of mutant and take Tissue Sample.
Find notes

The last trace is in the biggest location of The Tunnels.

Get onto the lower level and go left to get on the balcony with few fenced rooms.

Search the last room with few Walkers. The item you're looking for is notes lying on one of tables.
Talk with Kessler
Return to the BioSphere Laboratory when you can (use Fast Travel). Give all items from tunnels to dr Kessler to get a Golf Club.
Unlocked event: A New Machine (to unlock this you have to talk with Dr Kessler in BioSphere Laboratory).
- Dead Island Riptide Game Guide
- Dead Island Riptide: Game Guide
- Dead Island Riptide: Side missions - Jungle
- Dead Island Riptide: Electrifying
- Dead Island Riptide: Mines Go Boom
- Dead Island Riptide: Heavenly Gift
- Dead Island Riptide: Rescue Brian
- Dead Island Riptide: Fire Sale
- Dead Island Riptide: Rescue Stanley
- Dead Island Riptide: Genre Horror Slasher
- Dead Island Riptide: On the Set
- Dead Island Riptide: Rescue Megan
- Dead Island Riptide: Rescue Alfred
- Dead Island Riptide: Rescue Tyler
- Dead Island Riptide: Proximity
- Dead Island Riptide: Surplus
- Dead Island Riptide: White Line
- Dead Island Riptide: Rescue Kitty
- Dead Island Riptide: Rescue Mugambe
- Dead Island Riptide: Rescue Luke
- Dead Island Riptide: Alternative Medicine
- Dead Island Riptide: Antidote
- Dead Island Riptide: Kill Eduardo "Quickdeath" Petoia
- Dead Island Riptide: Stop the Madness
- Dead Island Riptide: History Lesson
- Dead Island Riptide: Safe Haven
- Dead Island Riptide: Kill James "Killer" Nisir
- Dead Island Riptide: Kill Olivier "Death Bone" Wenge
- Dead Island Riptide: Kill Peter "Undead" W. Spicer
- Dead Island Riptide: Kill Jimmy "Deathtrap" O'Neill
- Dead Island Riptide: Side missions - Jungle
- Dead Island Riptide: Game Guide
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