Aeolipile

An aeolipile is a steam engine powered by rocket propulsion due to escaping steam. Oliver Farrel used a grenade-like Aeolipile when trying to capture Tymolin Loneglade.

In the short story "The Mirror of Yesterday" in The Colors of Magic anthology, a Stromgald assassin, disguised as a Kjeldoran healer, killed Sabra with an Aeolipile.