diff --git a/preserves.nimble b/preserves.nimble
index 18f06e4..66d4b5f 100644
--- a/preserves.nimble
+++ b/preserves.nimble
@@ -1,6 +1,6 @@
 # Package
 
-version = "20231026"
+version = "20231028"
 author        = "Emery Hemingway"
 description   = "data model and serialization format"
 license       = "Unlicense"
diff --git a/src/preserves.nim b/src/preserves.nim
index 9c9d555..3a4ad2d 100644
--- a/src/preserves.nim
+++ b/src/preserves.nim
@@ -94,7 +94,7 @@ type
 
   DictEntry[E] = tuple[key: Preserve[E], val: Preserve[E]]
 
-proc `==`*[A, B](x: Preserve[A]; y: Preserve[B]): bool =
+func `==`*[A, B](x: Preserve[A]; y: Preserve[B]): bool =
   ## Check `x` and `y` for equivalence.
   if x.kind == y.kind and x.embedded == y.embedded:
     case x.kind
@@ -329,6 +329,13 @@ func step*(pr, idx: Preserve): Option[Preserve] =
     if i < pr.len:
       result = some(pr[i])
 
+func step*(pr: Preserve; path: varargs[Preserve]): Option[Preserve] =
+  ## Step into `pr` by indexes at `path`.
+  result = some(pr)
+  for index in path:
+    if result.isSome:
+      result = step(result.get, index)
+
 func step*[E](pr: Preserve[E]; key: Symbol): Option[Preserve[E]] =
   ## Step into dictionary by a `Symbol` key.
   if pr.isDictionary: