It looks like the lifespan/creation of the particles is low. If you are cloning one, make sure the original has a longer lifespan.
You could also try to :Emit(XXX) every particle in a while loop.
Ex.
local NParticle1 = Particle1:Clone()
NParticle1.Parent = NGrimoire1
local NParticle2 = Particle2:Clone()
NParticle2.Parent = NGrimoire1
-- add the others...
while wait(0.1) do
NParticle1:Emit(125)
NParticle2:Emit(125)
-- Repeat for all particle emitters...
end