Quick Links

At the beginning of Serial Cleaners' fourth chapter, Bob and his crew are tasked with cleaning up the Echo Killer's latest handiwork. A massive library is littered with bodies, evidence and blood. SWAT is already on the scene, so it's more important than ever to stay out of sight; the enemies in this mission shoot to kill.

Related: Serial Cleaners: Prison Mission Guide

Luckily, there are plenty of drop points and chase breakers throughout the building. You'll still have a challenge on your hands, especially when it comes to cleaning the cage in the center of the room, where Echo's rampage began.

Bottom Floor

echo killer cage

Start by cleaning the blood and picking up the evidence just north of your starting location, then crouch to hide yourself from the SWAT team coming in from the south. Once the coast is clear, move to the right to pick up the key lying near the piano. As soon as you have the key, move clockwise to the other side of the room to avoid the approaching officer.

Save at the desk to your right, then carefully make your way south to the stairs. Clean up the body and blood on the first landing, taking the body to the open window near the save point; Lati is waiting there to take it away.

In the likely event that you're spotted on the stairs, run upstairs to the north wing. You can squeeze between the bannister and the bookshelves to quickly evade pursuing cops, and there's a table you can hide under at the far left side.

Before moving upstairs, use the square key to unlock the cage in the middle of the floor near your starting position. Close and lock the door behind you to avoid arousing suspicion. Cleaning inside won't be easy since you're in clear view of anyone passing by, so hide under the bed the moment you see a cop approaching. Since the door is locked, they shouldn't be able to do anything about it even if they see you and will eventually move on.

The bottom-right corner of the library's first floor has a piece of evidence near the chessboard; it's rarely patrolled, so it should be easy to collect.

Related: Serial Cleaners: Police Station Mission Guide

Top Floor

bookshelf chase breaker

The upstairs north wing has a body and two bloodstains that need to be taken care of. There are at least two SWAT officers patrolling the area at any given time, so take it slow and make use of hiding spots to avoid them. Your vacuum is bound to attract attention!

The body can either be brought down the stairs to Lati or carefully carried to the left-hand window and dumped there.

The southern wing has a lot of blood, as well as a body and evidence. A cop patrols the right-hand side, but you can use the bookshelves and desks to avoid him as you work. The left side is much safer, but you can still be spotted by the cops on the first floor. Luckily, if that happens you'll have lots of time to hide before they reach you.

There's an open window in the bottom-right corner, as well as at the bottom of the spiral staircase. The body on the left-side landing, above the main entrance, can be easily dumped out the top-left corner as long as you avoid the nearby cop.

Once the scene is clear, escape through Lati's window north of the start point to reunite with the group and get away.

Next: Serial Cleaners: Yacht Mission Guide