Here is a screen shot of the pen. I do not see how a shaman could get there. It's surrounded by water.
https://steamuserimages-a.akamaihd.net/ugc/1825645848883860167/7EB01747257DF7F396B39CE246854355384F65CA/?imw=5000&imh=5000&ima=fit&impolicy=Letterbox&imcolor=%23000000&letterbox=false