A Doomed Pilgrim in the Ruins of the Future

It's a portal, a wild one and brand new at that. Powerful bolts of arcane energy arc from its center and into the sand around it. It's central vortex promises escape, a change of scenery tantalizingly exotic. However it is a wild portal, its destination unknown and the use of magic is never without a cost.

Sounds hazardous, but I'm in no position to be choosy.
I run for the portal. Do the spiders follow? If so, can I reach the portal before they reach me?
Anyone should answer.