Sewer Rendezvous

The Sewer Rendezvous is a 4 man seasonal alert in the Springtime event.

Overview

Veronica Cale teams up with Poison Ivy to capture Swamp Thing to use as a test subject. Cale employs a group of New Villains to capture him, meanwhile, noticing Poison Ivy's minions milling around the sewers, Doctor Sarah Charles employs a group of New Heroes to investigate.

Swamp Thing
Mandrake
Thistle
Delegate of The Green
Neophyte of The Green
Emissary of The Green
Technican
Envirotech Dispenser
The Giving Tree (heroes vendor) 2022-
The Misgiving Tree (villains vendor) 2022-
Arborist Louis (heroes vendor) 2013-2021
The Misgiving Tree (villains vendor) 2013-2021
The enemy combat rating is 34. All players with a higher CR will be clamped to 34 either.

First you need to place all the mist dispensers laying around at the entrance.
Swamp Thing needs to be exposed to the red poisonous mist the HAZMAT technicians set up. That will make him vulnerable.
If he only shows "1" on your hit counter, it is time to lure him into the red mist. He will take damage for a short period of time. Then repeat until he is down.

8 Seed Pods
Anti-Toxin Tartlette
Chance for 1 of the following:; Base Item from previous Springtime editions; Henchmen Uplink Device: Nature Spirits; Mossy style piece; Petal Blast Uplink Device; Pollen Aura (2016); Warrior of Spring style piece

Allergic Reaction: Complete the Sewer Rendezvous instance without allowing Swamp Thing or anyone in your group to come in contact with the Spore Clouds (10 points)
Tech Savvy: Complete the Sewer Rendezvous instance without losing any Technicians (10 points)

Formerly while players of any level could enter the instance, if they were below a certain level they would be given a power boost while within the instance to stand a fighting chance. This power boost was visually represented by a "flower" around their heads.
Before the 2025 edition of the Springtime event, this instance rewarded the player with 7 Seed Pods
Since 2025, the Vaultus Flytrap is not a part of the Springtime event - base items and style pieces now have a chance to drop in this instance instead.
Since 2025, the taskmasters for the alert -- Sarah Charles and Veronica Cale -- are not found in Gotham at the event hub with Poison Ivy and Swamp Thing. They can still be found and engaged at the event hubs in House of Legends and in the Watchtower Aquacultural Area or Hall of Doom in The Pit (Hall of Doom).