#1The Adventures of Sigma: Creaturep...by KalobBurnett20001251Read to find out.skullislandkingkongtheadventuresofsigma+10 more #2The Adventures of Sigma: Creaturep...by KalobBurnett20002151Read to find out.crossoversigmoniapleistocene+9 more #3The Adventures of Sigma: Creaturep...by KalobBurnett20001051Read to find out.sigmoniaanimalssigma+9 more #4The Adventures of Sigma: Creaturep...by KalobBurnett20002261Read to find out.skullislandcenozoiccreaturepedia+10 more #5The Adventures of Sigma: Creaturep...by KalobBurnett20001551Read to find out.sigmacenozoictheadventuresofsigma+10 more