Re: cloaking ships

   I believe Hallucinatory Terrain is the cloaked ship spell... this spell
is described in the spelljammer set.

   IIRC  invisibility spells apply only to living critters and equipment
carried worn.  Invisibility 10' Radius provides the same to all Critters
within 10' of a specific critter at the time of casting and are still within
10' of that critter.  It does not forexample make the parkbench that they
all are sitting on dissappear.  Nor would a mage want it to for if someone
knew a bench/ tree/ table / chest etc was supposed to be in place found that
it apparently wasn't the best reaction would be a cry for police and
burglary.

  The large illusions capable of being cast over an area are the only means
of hiding/cloaking a ship in the standard spell selections with
Hallucinatory Terrain being the best of them according to the boxed set.

                     --Steve