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Both, read up on Spiderbane. She did deliver the weapon but mistook it for something else

Spiderbane
The artifact that Elmendra mistook for the so called
Witch Hammer is actually nothing less than the
weapon High Chieftain Maiesticar thrust into the
heart of the Spider King. Ever since Angatal Taar
was slain, the weapon has been in the witches’
custody, as they wait for the next hostile spider
creature to emerge. Spiderbane is, whatever form
it takes (see below), a mastercrafted item with the
qualities Balanced, Deep impact, and Precise.
Transfiguration: The artifact can take different
forms, according to its master’s will – becoming a
Short weapon, Single-handed weapon, Long weapon
or Heavy weapon. It takes one turn to complete the
transfiguration, but then the form is set until the
master wishes otherwise.
Action: Active
Corruption : 1
Cleansing of the Blood: By cutting or pricking
his/her own flesh, and letting Spiderbane come into
contact with the blood, the master can lessen the
effects of poisons (works as a moderate antidote.
Action: Free
Corruption : 1D4
Scourge of Spiders: If its master has the
adept-level Beast Lore ability (specialization: beasts)
and passes a Cunning test, Spiderbane deals +1d8
damage against creatures of the Spider family. The
effect lasts for the rest of the scene.
Action: Free
Corruption : 1D6

Also worth mentioning, is that the First Father [Jeseebegai]
has provided his cousin [Father Argaton
Soleij, a black cloak and theurg] with a mighty artifact –
the weapon which Elmendra gave to Crueljaw,
who then handed it to Father Piromei. The theurgs
have examined the artifact closely and been able to
determine its powers.

Argaton surrounds himself with allies,
while letting the might of Prios incinerate his
enemies (Prios’ Burning Glass) and heal his
friends (Lay on Hands). He carries Spiderbane in
the form of a sword, but will not use it unless he
has no other choice.