Tandocca Scale
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File:Tandoka Scale.jpg
The Tandoka Scale as used by the migrant Bees escaping the Medusa Cascade.
The Tandoka Scale is a scale used by migrant Bees from Melissa Majoria as carrier signals.
When the Earth was stolen, they used the Tandoka Scale to travel home. The Doctor was able to trace the signals and take the TARDIS to the Medusa Cascade.(DW: The Stolen Earth)
