Glyph of Sealing
SpellDolmenwood Player's Book · p.81
Open source p.81Arcane Rank 1 Duration 2d6 Turns Range 30′
A glowing rune appears on a single closed door, gate, lid, or similar portal of the caster’s choosing, magically preventing it from being opened.
Opening by magic: A Knock spell opens the sealed portal instantly, dispelling the Glyph of Sealing.
Opening by force: Creatures 3 Levels or more above the caster can open the sealed portal with 1 Round of effort.