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Heroes in Crisis #3 is an issue of the series Heroes in Crisis (Volume 1) with a cover date of January, 2019. It was published on November 28, 2018.
Synopsis for "Part 3: Master of the Lagoon"
On the day of the Sanctuary massacre, Lagoon Boy had been in the Sanctuary's simulation reliving a past event wherein Power Boy was stabbed and he was shot with a laser; he had replayed this simulation more than three-hundred thirty-seven times, according to the Sanctuary AI. Wally West had requested for the simulation to generate his old backyard along with his wife Linda Park, and his children Jai and Iris West, so that he may spend his time with them as he had before Flashpoint.
Booster Gold had just arrived at Sanctuary that day, and was given a mask and robes for anonymity. In the simulation room, he simply generated a hologram of himself and got into an argument with it. The fight was interrupted by alarms at Sanctuary and Wally was seen running outside; Lagoon boy complied with the alarm instructing him to exit the building and found Red Devil, Hot Spot and Gunfire's lifeless bodies out in the surrounding field. As he stared at them in disbelief, he was struck by a sharpened projectile and killed, weakly laughing as his life ended.
A grief-stricken Flash sat on the porch holding Arsenal's body, telling him he just didn't want to be alone. Harley Quinn approached from behind and knocked him unconscious with her mallet, witnessed only by Booster Gold; Harley asked him how his first day had gone, and he dejectedly but simply responded that everyone is dead.

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Appearing in "Part 3: Master of the Lagoon"
Featured Characters:
- Booster Gold (Flashback only)
- The Flash (Wally West) (Apparent death)
- Lagoon Boy (First full appearance) (Dies in flashback)
Supporting Characters:
Antagonists:
- Captain Cold (Hologram)
- Harley Quinn (Flashback only)
Other Characters:
- Arsenal (Appears only as a corpse)
- Commander Steel (Henry Heywood) (Flashback only) (Cameo)
- Gnarrk (Flashback only) (Cameo)
- Gunfire (Flashback and main story) (Also as a corpse)
- Irey West (New Earth) (Hologram)
- Hot Spot (Appears only as a corpse) (Cameo)
- Jai West (New Earth) (Hologram)
- Linda Park (New Earth) (Hologram)
- Maxwell Lord (Cover only)
- Nemesis (Thomas Tresser) (Flashback only) (Cameo)
- Poison Ivy (Flashback only) (Cameo)
- Protector (First appearance) (Flashback only) (Cameo)
- Red Devil (Flashback and main story) (Also as a corpse)
- Solstice (Flashback only) (Cameo)
- Tattooed Man (Mark Richards) (Flashback only) (Cameo)
- Wonder Woman (Diana of Themyscira) (Cover only)
- Batman (Bruce Wayne) (Mentioned only)
- Ellen Carter (Mentioned only)
- The Flash (Barry Allen) (Mentioned only)
- Titans East (Mentioned only)
- Little Barda (Mentioned only)
- Power Boy (Mentioned only)
Locations:
- New Earth (Hologram)
- Kansas
- Keystone City (Hologram)
- Kansas
- Prime Earth
- Earth (Flashback and main story)
- Nebraska (Flashback and main story)
- Sanctuary (Flashback and main story)
- Hawaii
- Honolulu (Mentioned only)
- Missouri
- Central City
- CCPD Headquarters (Mentioned only)
- Central City
- Nebraska (Flashback and main story)
- Jupiter (Mentioned only)
- Earth (Flashback and main story)
Items:
- Bracelets of Submission (Cover only)
- Harley's Mallet (Flashback only)
- Lasso of Truth (Cover only)
- Sunstone (Mentioned only)
- Wonder Woman's Tiara (Cover only)
Concepts:
- Death of Maxwell Lord (Cover only)
Notes
- This issue is reprinted in Heroes in Crisis.
See Also