Stragglers were to form a reserve corps atop the hill.

Here and there it forms a thin skin atop the stone, not soupy but dark and dense.

The surprisingly swift action took place at hot vents in the ocean floor that sometimes form atop volcanic fissures.

A low waistline separates the two pieces and forms a line atop the fenders.

A dull red spot formed atop each presidential cheekbone.

Together the disk cells and secretory cavity form a round head atop the narrow stalk.

All the elves rose up and formed a circle atop the hill.

The fuel-air combination formed fiery clouds atop the building that roiled orange and black.

Shadows began to form atop Brennan's slender shoulders.

Over to the left a group of natives formed a heaving pile atop some forms that I couldn't see but could easily hear.