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The Glasshouse is a massive glass structure inhabited by most of New Crobuzon's Cactacae population. Non-cactacae are expressly forbidden from entering on pain of death.

Events of Perdido Street Station[]

During the events of Perdido Street Station, Isaac Dan der Grimnebulin and his group, including several adventurers, are forced to infiltrate the Glasshouse in order to hunt down several Slake Moths which have discretely nested in one of the interior's houses

The Cactacae are shown to possess a powerful device made up of mirrors and a brilliant lamp. The device is capable of producing a beam of concentrated light capable of searing targets caught in its path. They attempt to use it to hunt the Slake Moths which have been terrorizing them.