And no matter how intimate one is with this illness, the primordial fear of madness lurks deep within.

The fear of failure always lurked below the surface.

It unlocks that part of your mind where your worst fears lurk and drags them into the light.

In the background of his mind lurked fear, fear of impending, absolute disaster.

A cold fear lurked in the background of his mind.

As with so many show business superachievers, the fear of failure lurked beneath her success.

At least for now, the two big banks allayed investors' fears of further problems lurking in their loan portfolios.

The same fear has lurked in Tom Ryan's mind.

For too long fear had lurked beneath her surface emotions.

But fear lurks beneath the surface and is beginning to paralyse normal life.