“ <br />
The spirit of a creature trapped in amber cannot escape to it's afterlife / next incarnation / whatever.
Such trapped spirits can be contacted by those who know the right rituals and magical power derived from them typically the power to control one individual of that species.
Can by quite powerful if the creature is a colony insect (ant, bee, wasp, etc) simply control the queen and you command the whole colony.”
“ One morning, the sun does not rise. It seems that a great darkness has settled across the kingdom - at first, it is merely an inconvenience, but as time passes and plants begin to sicken and die, some action must be taken. As the deluded King plans the sacrifice of fifty tender virgins in the name of the Sun God, rumours spread of an ancient barrow uncovered in the hills...”
“ <br />
A plague has hit the local area.<br />
In humans it affects only the most vulnerable, the children and the very old, and even than it's little more than a summer cold. 24 hours of sniffles and then it's gone, barely noticeable really.<br />
To sheep however it is fatal and the whole economy of the area is in serious trouble. If this keeps up the area could well be facing famine.<br />
Somebody (enter the PCs) must find the rare herbs needed to make a cure.”