I've been doing a little research and thought I'd catalog all the Infernals I know. Here (in no particular order) are six of them.
The Lillitongue of Gefreda – brings someone…somewhere (see Infernal)
The Kislival – “the Cleaner” – sends things…somewhere (see "The Cleaning Machine")
The Phedro - Jacob Prather's Mystery Machine (Oz's Device) – divides the veil to the Otherness
The Kaiilu Ėntgab - mini Tesla tower - opens passage to the Otherness (Conspiracies)
The Cidsev Nelesso in "Infernal Night" – hears thoughts
The Bagaq – “the sponge” – reputed to absorb pain and injury (coming - and you know there'll be a catch)
And one more…
So far Jack has seen 4 Infernals: The Lillitongue of Gefreda, the Phedro, the Kaiilu Ėntgab, and the Cidsev Nelesso. And soon a 5[SUP]th[/SUP]: the Bagaq.
FPW
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