Inktober Day 4

Inktober Day 4: prompt: Spell
The dwarves of yore made mighty spells,
While hammers fell like ringing bells
In places deep, where dark things sleep,
In hollow halls beneath the fells.

I wish I'd put some Dark Things sleeping under that weird giant anvil now, but I only thought of it later.  Though it would be a very noisy place to sleep...