Portable Hole
Component:
A circle of hide, of a diameter no larger than nine inches, cut from a black calf sacrificed at midnight
When the sorcerer speaks the incantation and places the circle of calfskin, it becomes an opening through any inanimate material.
While the spell is active, the circle is essentially a hole—a window—to the immediate other side of the inanimate material. This creates an opening through walls/doors/chests, through which things can pass.
This spell simply doesn’t function on living tissue.
Things that fit somewhere in the blurred line of living and unliving (silicon viruses, undead, and animate stone gargoyles) are left up to the discretion of the GM.
This spell never damages the actual integrity of the transposing surface. Even if a portable hole is placed in a strategic load bearing section, the structure itself remains whole.
If the inanimate material has no other “side,” a hole about a foot deep opens. Items placed in this hole are swallowed, but not damaged by, the surrounding material when the spell ends.
This spell is maintained by concentration. When the spell ends, the window closes back into the component circle of calfskin.