The Thieves of Waterdeep
Carried by Reginald
A portable hole is a circle of magical cloth spun from the webs of a phase
spider interwoven with strands of ether and beams of Astral plane luminaries. When opened
fully, a portable hole is 6 feet in diameter, but it can be folded as small as a pocket handkerchief.
When spread upon any surface, it causes an extra-dimensional hole 10 feet deep to come into
being. This hole can be “picked up” from inside or out by simply taking hold of the edges of the
magical cloth and folding it up. Either way, the entrance disappears, but anything inside the hole remains.
Area Inside portable hole = pi x r^2 x depth = 1130 cubic feet.
If a large saddlebag carries 25lbs for 3 cubic feet = 1250 coins. Therefore the portable hole could carry 470800 loose coins.
The only oxygen in the hole is that allowed by creation of the space, so creatures requiring the
gas cannot remain inside for more than a turn or so without opening the space again by means of
the magical cloth. The cloth does not accumulate weight even if its hole is filled (with gold, for example).
Each portable hole opens on its own particular nondimensional space. If a bag of
holding is placed within a portable hole, a rift to the Astral Plane is torn in the space, and the bag and the cloth are sucked into the void and forever lost. If a portable hole is placed within a bag of holding, it opens a gate to another plane, and the hole, bag, and any creatures within a 10-foot radius are drawn to the Astral Plane, the portable hole and bag of holding being destroyed in the process.