The Adventures of the X-Men #7

Sabretooth crawls out of the Arctic crevice that Wolverine dropped him in during an earlier adventure looking for revenge. While Sabretooth is traveling to the mansion Jubilee is there alone with the Professor because she was not experienced enough to go with the X-Men on their latest adventure. When Sabretooth breaks into the mansion Jubilee must defeat him on her own (with a little help from Professor X). When the X-Men arrive back from their adventure they are very impressed that Jubilee was able to stop Sabretooth.