diff --git a/api/axis.py b/api/axis.py
index 3ef0d210ab..c5535fcdf2 100644
--- a/api/axis.py
+++ b/api/axis.py
@@ -1703,7 +1703,8 @@ def _parse(self, parsed: dict[str, Any], **kwargs: Any) -> T:
 class Axis360FulfillmentInfoResponseParser(
     JSONResponseParser[
         tuple[Union[FindawayManifest, "AxisNowManifest"], datetime.datetime]
-    ]
+    ],
+    LoggerMixin,
 ):
     """Parse JSON documents into Findaway audiobook manifests or AxisNow manifests."""
 
@@ -1771,6 +1772,19 @@ def parse_findaway(
         sessionKey = k("FNDSessionKey", parsed)
         checkoutId = k("FNDTransactionID", parsed)
 
+        if sessionKey == "Expired":
+            try:
+                identifier_msg = f"{license_pool.identifier.type}/{license_pool.identifier.identifier}"
+            except AttributeError:
+                identifier_msg = f"LicensePool.id {license_pool.id}"
+
+            message = f"Expired findaway session key for {identifier_msg}. Request data: {json.dumps(parsed)}"
+            self.log.error(message)
+            raise RemoteInitiatedServerError(
+                message,
+                self.SERVICE_NAME,
+            )
+
         # Acquire the TOC information
         metadata_response = self.api.get_audiobook_metadata(fulfillmentId)
         parser = AudiobookMetadataParser()
diff --git a/api/controller/loan.py b/api/controller/loan.py
index ca2ab32e8d..c539ec94ff 100644
--- a/api/controller/loan.py
+++ b/api/controller/loan.py
@@ -8,7 +8,7 @@
 from lxml import etree
 from werkzeug import Response as wkResponse
 
-from api.circulation_exceptions import CirculationException
+from api.circulation_exceptions import CirculationException, RemoteInitiatedServerError
 from api.controller.circulation_manager import CirculationManagerController
 from api.problem_details import (
     BAD_DELIVERY_MECHANISM,
@@ -146,7 +146,7 @@ def _borrow(self, patron, credential, pool, mechanism):
                 patron, credential, pool, mechanism
             )
             result = loan or hold
-        except CirculationException as e:
+        except (CirculationException, RemoteInitiatedServerError) as e:
             result = e.problem_detail
 
         if result is None:
@@ -322,7 +322,7 @@ def fulfill(
                 requested_license_pool,
                 mechanism,
             )
-        except CirculationException as e:
+        except (CirculationException, RemoteInitiatedServerError) as e:
             return e.problem_detail
 
         # A subclass of FulfillmentInfo may want to bypass the whole
@@ -446,7 +446,7 @@ def revoke(self, license_pool_id):
         if loan:
             try:
                 self.circulation.revoke_loan(patron, credential, pool)
-            except CirculationException as e:
+            except (CirculationException, RemoteInitiatedServerError) as e:
                 return e.problem_detail
         elif hold:
             if not self.circulation.can_revoke_hold(pool, hold):
@@ -454,7 +454,7 @@ def revoke(self, license_pool_id):
                 return CANNOT_RELEASE_HOLD.detailed(title, 400)
             try:
                 self.circulation.release_hold(patron, credential, pool)
-            except CirculationException as e:
+            except (CirculationException, RemoteInitiatedServerError) as e:
                 return e.problem_detail
 
         work = pool.work
diff --git a/tests/api/test_axis.py b/tests/api/test_axis.py
index dd25b36d2e..97c5df94b1 100644
--- a/tests/api/test_axis.py
+++ b/tests/api/test_axis.py
@@ -1639,6 +1639,13 @@ def get_data():
             m(bad_date, license_pool=pool)
         assert "Could not parse expiration date: not-a-date" in str(excinfo.value)
 
+        # Try with an expired session key.
+        expired_session_key = get_data()
+        expired_session_key["FNDSessionKey"] = "Expired"
+        with pytest.raises(RemoteInitiatedServerError) as excinfo:
+            m(expired_session_key, license_pool=pool)
+        assert "Expired findaway session key" in str(excinfo.value)
+
     def test__parse_axisnow(self, axis360parsers: Axis360FixturePlusParsers) -> None:
         # _parse will create a valid AxisNowManifest given a
         # complete document.