Sepia Snake Sigil

10 min|V,S,M|Touch|Touched Book or Work|Perm
'til Dis or 1d4+1/lvl days|Ref Neg|No
You create a symbol that appears in the work of
1 book, scroll, map etc of at least 25 words long.
Anyone reading the work triggers the Sepia Snake.
A successful save dissipates the symbol. A failed
save renders the reader engulfed in an amber field
of force and immobilized until released by
command or 1d4 days +1/lvl. PHB 276