"Ouch. Mystic Mark is bad; it's a cheap enough spell it might be on all these badged items -- the badge is like a "Beware of Dog" sign, nothing of consequence in itself. And you can bet someone back at the Guild will start casting to find the Marked items as soon as they know their group is overdue."
OOC:
Dilandua:
(there is no "Remove Enchantment" spell in GURPS)
There is, on M58. Probably NPC only here, if it wasn't completely scrubbed from DFRPG, and it's fairly expensive (minimum 100 FP or 1/10 of the enchantment cost of the spell to be removed, so weeks/months to complete even for a circle -- 5 mages would take 20 days at a minimum without Q&D -- making it nearly prohibitive to actually use at our time scale), but it's fully selective (barring failures and critical failures, of course).
If it were Virgilio's decision, even with the monetary loss, he'd break the staves down for materials rather than risk carrying one with the Mark.
I see Remove Aura (M127) only lasts a day and has to be recast (mainly
resists certain spells including Seeker); further, I'm not even close to the prerequisites (Dispel Magic and Aura).