Campaign of the Month: April 2011
Planejammer: The Spelljoined
Chalk-like sticks that can be used to make invisible markings. Such writing can only be seen by voidlenses or by any magical effects that reveal invisibility. Many vendors claim they come from the Plane of Vacuum, but in actuality they originate from Tir na Og in the Outlands, where they are known as marker bits.