Midblight

Midblight is a infection plants, but mostly TARDISes get, If you want to avoid this infection, then stay away from glowing purple mushrooms, Known as Nightshrooms, Now, we will explain the stages of the infection, for a TARDIS

Stage 1
Stage 1 Is nothing much, except for being the only stage where you can stop the infection, which normally requires freezing the entire exterior and entrance room (Normally a console room) of a TARDIS, There are no visible warnings except for seeing a glowing purple spore touching the exterior.

Stage 2
Depending on the exterior, Some form of decay will appear on the exterior, for example, rotting wood for a wood-based exterior, moss and rust on a metal based, and moss and cracks for a stone or brick based exterior, and most systems are faulty, such as life support, and exterior dimension stability.

Stage 3
The infection is now obvious, as most of the exterior and interior is covered in the purple glow of the infection, Causing the TARDIS to be unusable, despite this, if the owner of the TARDIS leaves it or helps, the TARDIS will try and force them to help, if the owner is completely gone from the local area, or dead, the TARDIS will attempt to locate another Time Lord.