Here's a good trick: search rolls never reveal hidden things directly; they reveal clues. For example,
- Instead of "You find a secret compartment on the book shelf," say "One set of books is much less dusty than the others."
- Instead of "You find treasure under the bed," say "Something golden glints from beneath the bed."
- Instead of "You find the wand amongst the firewood," say "One small stick of wood stands out as unusually straight."