Float for a short time.
Upgrade: Grants invincibility while floating.

The Hover Plume is a Curio available in Specter of Torment. It becomes available for purchase from Red after completing the Iron Whale level and costs 7 Red Skulls. When activated, the Hover Plume allows Specter Knight to float straight up and move around for a brief period of time.

In the Tower of Fate, Legion can upgrade the Hover Plume for 4000 gold. After being upgraded, the Hover Plume will grant invincibility while it is in use.

This curio is very useful in most stages of the game, but is especially useful in the Flying Machine, Clockwork Tower and Tower of Fate levels as there are many bottomless pits and spikes to fall in.