The portals of Operation Inject has lots of mysteries and places to explore.
If you don't know what the portals take you then scroll down and look at my screenshots that explains were each portal leads you to.
The three portals that can be found in Lumbridge are the Zamorak, Saradomin, and Guthix portals.
View at EasyCaptures.comThe portal room is were the party begins since there's lots of places to explore including the minigames.
View at EasyCaptures.comThe monster portal takes you to a portal room that can teleport you to any monster places.
View at EasyCaptures.com*´¨)
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(¸.•´ (¸. Conan
P.S. I will continue to update this if Kamorax adds more portals so don't worry