This is the node reached by the cross reference named ‘Cross’.
While this node is specifically intended to be reached by a cross reference, most cross references lead to nodes that “belong” someplace else far away in the structure of an Info document. So you cannot expect this node to have a ‘Next’, ‘Previous’ or ‘Up’ links pointing back to where you came from. In general, the l (el) command is the only way to get back there.
>> Type l to return to the node where the cross reference was.