Hoof.  This is really cruddy of me - I'm sorry - I forgot get collection links was implemented to paginate lists from cassandra, all of which have an parameter 'id'.  The events do not have this, and I guess the marker is just the offset.  Probably the easiest way is to just generate the links here, another option is to fix get_collection_links to optionally take a column name to use as the marker, and if none is given just uses the offset.  :|